%0 Journal Article %A Ilse Fischer %A Matjaž Konvalinka %T A bijective proof of the ASM theorem. I: The operator formula %J The electronic journal of combinatorics %D 2020 %V 27 %N 3 %U http://geodesic.mathdoc.fr/articles/10.37236/9082/ %R 10.37236/9082 %F 10_37236_9082