[1] M. Renfors and L. Sintonen, "A wideband feedback receive amplifier for optical communication systems," Tampere University of Technology, Electronics Laboratory, Research Report no. 36, 1979, pp. 1-5.

[2] M. Renfors and Y. Neuvo, "Fast multiprocessor realizations of digital filters," in Proc. IEEE Int. Conf. Acoust., Speech, Signal Processing (Denver, CO), pp. 916-919, April 1980.

[3] M. Renfors and Y. Neuvo, "Equivalence transformations of digital filter networks," in Proc. European Conf. Circuit Theory and Design (Warsaw, Poland), pp. 462-467, Sept. 1980.

[4] M. Renfors and Y. Neuvo, "Multiprocessor Realizations of Digital Filters," in Proc. X National Convention on Radio Science (Oulu, Finland), pp. 79-82, Oct. 1980.

[5] M. Renfors and Y. Neuvo, "The maximum sampling rate of digital filters under hardware speed constraints," IEEE Trans. Circuits Syst., vol. CAS-28, pp. 196-202, March 1981.

[6] P. Aarnio, I. Hartimo, Y. Neuvo, M. Renfors, and O. Simula, "Performance experiments of digital filters on a special hardware," in Proc. Int. Conf. on Digital Signal Processing (Florence, Italy), pp. 174-180, Sept. 1981.

[7] M. Renfors, "Digitaalinen signaalinkäsittely," Elektroniikka 19/1981.

[8] M. Renfors, "On the design of efficient digital filters using graph theoretic equivalence transformations," Dr. Tech. dissertation, Dep. Elec. Eng., Tampere University of Technology, Finland, April 1982.

[9] M. Renfors, "Design of low-noise digital filters with reduced number of multipliers and short coefficient wordlength," in Proc. IEEE Int. Symp. Circuits Syst. (Rome, Italy), pp. 519-522, May 1982.

[10] M. Renfors, "Roundoff noise in error-feedback state-space filters," in Proc. IEEE Int. Conf. Acoust., Speech, Signal Processing (Boston, MA), pp. 619-622, April 1983.

[11] M. Renfors, B. Sikström, and L. Wanhammar, "An integrated CAD system for VLSI implementation of digital filters," in Proc. Int. Conf. on VLSI (Trondheim, Norway), pp. 423-432, August 1983.

[12] M. Renfors, B. Sikström, and L. Wanhammar, "LSI implementation of limit-cycle-free digital filters using error-feedback techniques," in Proc. Second European Signal Processing Conf. (Erlangen, FRG), pp. 107-110, Sept. 1983.

[13] M. Renfors and E. Zigouris, "Signal processor implementation of lattice wave digital filters," in Proc. Int. Conf. on Digital Signal Processing (Florence, Italy), pp. 233-237, Sept. 1984.

[14] S. Matsumura, M. Renfors, B. Sikström, and L. Wanhammar, "LSI implementation of lattice wave digital filters," in Proc. Int. Conf. on Digital Signal Processing (Florence, Italy), pp. 303-307, Sept. 1984.

[15] S. Matsumura and M. Renfors, "LSI design project: Implementation of lattice wave digital filters," Internal report, Linköping University, Sweden, Nov. 1984.

[16] M. Renfors, B. Sikström, and L. Wanhammar, "CAD tools for digital filter analysis and design," in Proc. Int. Conf. on Computers, Systems and Signal Processing (Bangalore, India), pp. 107-111, Dec. 1984.

[17] M. Renfors, B. Sikström, U. Sjöström, and L. Wanhammar, "VLSI implementation of a digital PCM filter," in Proc. Int. Conf. on Computers, Systems and Signal Processing (Bangalore, India), pp. 1468-1472, Dec. 1984.

[18] K. Järvinen, M. Renfors, T. Saramäki, and Y. Neuvo, "Design of an IIR-filter bank for dual tone receivers," in Proc. Tenth Symposium on Signal Processing and Applications (Nice, France), pp. 443-448, May 1985.

[19] M. Renfors and T. Saramäki, "Design and properties of recursive Nth-band digital filters and their use in sampling rate alteration," in Proc. IEEE Int. Symp. Circuits Syst. (Kyoto, Japan), pp. 75-78, June 1985.

[20] M. Renfors, T. Saramäki, and K.-P. Estola, "Efficient FIR, IIR, and hybrid Nyquist filters with zero intersymbol interference," in Proc. IEEE Int. Conf. Acoust., Speech, Signal Processing (Tokyo, Japan), pp. 2591-2594, April 1986.

[21] M. Renfors, Y. Neuvo, and S. K. Mitra, "A new class of uniform filter banks based on recursive Nth-band filters," in Proc. IEEE Int. Conf. Acoust., Speech, Signal Processing (Tokyo, Japan), pp. 2555-2558, April 1986.

[22] M. Renfors and T. Saramäki, "A class of approximately linear phase digital filters composed of allpass subfilters," in Proc. IEEE Int. Symp. Circuits Syst. (San Jose, CA), pp. 678-681, May 1986.

[23] T. Kolehmainen, T. Saramäki, M. Renfors, and Y. Neuvo, "Signal processor implementation of computationally efficient FIR filter structures -- Theory and practice," in Proc. 2nd Nordic Symposium on VLSI in Computers and Communications (Linköping, Sweden), June 1986.

[24] K. Järvinen, M. Renfors, and Y. Neuvo, "Adaptive sub-band coder with transition detection -- Good speech quality at 16 kbits/s," in Proc. Finnish Artificial Intelligence Symposium (Espoo, Finland), pp. 361-370, Aug. 1986.

[25] K. Järvinen, T. Kolehmainen, O. Ali-Yrkkö, M. Renfors, and Y. Neuvo, "Real-time implementation of a 16 kbits/s sub-band coder," in Proc. Second Nordic Seminar on Digital Land Mobile Radio Communication (Stockholm, Sweden), pp. 247-252, Oct. 1986.

[26] M. Renfors and T. Saramäki, "Recursive Nth-band digital filters-- Part I: Design and properties," IEEE Trans. Circuits Syst., vol. CAS-34, pp. 24-39, Jan. 1987.

[27] M. Renfors and T. Saramäki, "Recursive Nth-band digital filters-- Part II: Design of multistage decimators and interpolators," IEEE Trans. Circuits Syst., vol. CAS-34, pp. 40-51, Jan. 1987.

[28] T. Saramäki and M. Renfors, "A novel approach for the design of IIR filters as a tapped cascaded interconnection of identical allpass subfilters," in Proc. IEEE Int. Symp. Circuits Syst. (Philadelphia, PA), pp. 629-632, May 1987.

[29] T. Laakso, O. Hyvärinen, and M. Renfors, "Signal processor implementation of some recursive digital filter structures," in Proc. Int. Conf. on Digital Signal Processing (Florence, Italy), pp. 220-224, Sept. 1987.

[30] P. A. Regalia, S. K. Mitra, P. P. Vaidyanathan, M. K. Renfors, and Y. Neuvo, "Tree-structured complementary filter banks using all-pass sections," IEEE Trans. Circuits Syst., vol. CAS-34, pp. 1470-1484, Dec. 1987.

[31] M. Renfors and E. Zigouris, "Signal processor implementation of digital allpass filters," IEEE Trans. Acoust., Speech, Signal Processing, vol. ASSP-36, pp. 714-729, May 1988.

[32] E. Kuisma, T. Kolehmainen, M. Renfors, J. Tomberg, and H. Tenhunen, "Signal processing requirements in pan-European digital mobile radio," in Proc. IEEE Int. Symp. Circuits Syst. (Espoo, Finland), pp. 1803-1810, June 1988.

[33] K. Järvinen, O. Ali-Yrkkö, and M. Renfors, "Efficient speech coding at low bit-rates," in Proc. Nordic Acoustical Meeting (Tampere, Finland), pp. 181-184, June 1988.

[34] M. Renfors, J. Tomberg, H. Tenhunen, Y. Neuvo, and E. Kuisma, "Speech codec architecture for pan-European digital mobile radio using bit-serial signal processing," in Proc. 1988 IEEE Workshop on VLSI Signal Processing (Monterey, California), pp. 50-60, Nov. 1988.

[35] M. Renfors, " Multi-dimensional sampling structure conversion with one-dimensional Nth-band filters," in Proc. IEEE Int. Symp. Circuits Syst. (Portland, OR), pp. 1502-1507, May 1989.

[36] M. Renfors, T. Huuhtanen, A. Nieminen, and T. Koivunen, "Linear and nonlinear filters for sampling structure conversion of two-dimensional sequences," in Proc. Third Int. Workshop on HDTV (Torino, Italy), 10 p. Aug. 1989.

[37] A. Lehtonen and M. Renfors, "Non-Linear Quincunx Interpolation Filtering," Visual Communications and Image Processing ´90 (Lausanne, Switzerland), pp. 135-142, Oct. 1990.

[38] M. Renfors, S. K. Mitra, P. Regalia, Y. Neuvo, "Weighted Complementary IIR Digital Filters," in Proc. IEEE Int. Symp. Circuits Syst. (Singapore), pp. 136-139, June 1991.

[39] T. Huuhtanen and M. Renfors, "Orthogonal transforms in sampling structure conversion," in Proc. IEEE Int. Symp. Circuits Syst. (San Diego, CA), pp. 995-998, May 1992.

[40] M. Renfors, S. K. Mitra, P. A. Regalia, and Y. Neuvo, "Generalized doubly complementary IIR digital filters," Signal Processing, vol. 29, pp. 173-181, Nov. 1992.