 Orlitsky, A. 

 Orlitsky, A. (V. Roychowdhury, K. Siu, A. Orlitsky and T. Kailath)  A geometric approach to threshold circuit complexity  1991 
 Orlitsky, A. (Y. Brandman, J. Hennessy and A. Orlitsky)  A spectral lower bound technique for the size of decision trees and two level circuits  1990 
