@article{RCM_1987__21_1_181793,
     author = {Emil Grosswald},
     title = {Some {Number} {Theoretical} {Products.}},
     journal = {Revista colombiana de matematicas},
     pages = {231--242},
     year = {1987},
     volume = {21},
     number = {1},
     zbl = {0667.10005},
     url = {http://geodesic.mathdoc.fr/item/RCM_1987__21_1_181793/}
}