Sensitivity invariant sums of high-order. - Jacek Izydorczyk; Jan Chojcan (ICECS, 2008)

Invariant sums of higher order sensitivities. - Jacek Izydorczyk; Jan Chojcan (ISCAS, 2008)

Some invariant sums of higher-order sensitivities. - Jacek Izydorczyk; Jan Chojcan (Int. J. Circuit Theory Appl., 2009)

High-order sensitivity invariants. - Jacek Izydorczyk; Jan Chojcan (Int. J. Circuit Theory Appl., 2011)