@article{MS2_1964__14_165879, author = {Hans-Fredrick Aas}, title = {Congruences for the {Coefficients} of the {Modular} {Invariant} j(...).}, journal = {Mathematica Scandinavica}, pages = {185--192}, publisher = {mathdoc}, volume = {14}, year = {1964}, zbl = {0144.27506}, url = {http://geodesic.mathdoc.fr/item/MS2_1964__14_165879/} }