%0 Journal Article %A PrĂ¡ger, Milan %T Eigenvalues and eigenfunctions of the Laplace operator on an equilateral triangle %J Applications of Mathematics %D 1998 %P 311-320 %V 43 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1023/A:1023269922178/ %R 10.1023/A:1023269922178 %G en %F 10_1023_A_1023269922178