@article{10_4064_aa100_4_5,
     author = {Ronald Evans},
     title = {Extensions of classical congruences
for parameters in binary quadratic forms},
     journal = {Acta Arithmetica},
     pages = {349--364},
     publisher = {mathdoc},
     volume = {100},
     number = {4},
     year = {2001},
     doi = {10.4064/aa100-4-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa100-4-5/}
}