%0 Journal Article %A J. Proschan %T On the changes of sign of a certain class of error functions %J Acta Arithmetica %D 1970 %P 407-430 %V 17 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-17-4-407-430/ %R 10.4064/aa-17-4-407-430 %G en %F 10_4064_aa_17_4_407_430