Pulse-density modulation technique in VLSI implementations of neural network algorithms. - Jouni Tomberg; Kimmo K. Kaski (IEEE J. Solid State Circuits, 1990)

Some IC Implementations of Artificial Neural Networks Using Synchronous Pulse-Density Modulation Technique. - Jouni Tomberg; Kimmo Kaski (Int. J. Neural Syst., 1991)

Parallel Coprocessor for Kohonen's Self-Organizing Neural Network. - Jukka Saarinen; Martti Lindroos; Jouni Tomberg; Kimmo Kaski (IPPS, 1992)