@article{1028999182, author = {Breusch, Robert}, title = {An asymptotic formula for primes of the form $4n+1$.}, journal = {Michigan Math. J.}, volume = {11}, number = {1}, year = {1964}, pages = { 311-315}, language = {en}, url = {http://dml.mathdoc.fr/item/1028999182} }
Breusch, Robert. An asymptotic formula for primes of the form $4n+1$.. Michigan Math. J., Tome 11 (1964) no. 1, pp. 311-315. http://gdmltest.u-ga.fr/item/1028999182/