Sziranyi, T., &; Csicsvari, J. L. (1993). High-speed character recognition using a dual cellular neural network architecture (CNND). IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing. IEEE.https://doi.org/10.1109/82.222823 
LibreCat: https://research-explorer.ista.ac.at/record/3446
DOI: 10.1109/82.222823