@article{10_4064_aa145_1_2,
     author = {Michael Dewar},
     title = {On the non-existence of simple congruences
 for quotients of {Eisenstein} series},
     journal = {Acta Arithmetica},
     pages = {33--41},
     publisher = {mathdoc},
     volume = {145},
     number = {1},
     year = {2010},
     doi = {10.4064/aa145-1-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa145-1-2/}
}