%0 Journal Article %A Steven B. Bank %A Robert P. Kaufman %T On the Weierstrass functions, Sigma, Zeta, Pe, and their functional and differential equations. (Short Communication). %J Aequationes mathematicae %D 1977 %P 115-117 %V 15 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1977__15_136640/ %F AM2_1977__15_136640