@article{GDZPPN002542900,
title = {Chebyshev type estimates in prime number theory.},
journal = {Seminaire de Th\'eorie des Nombres de Bordeaux},
volume = {3},
year = {1973},
pages = {1-11},
url = {http://dml.mathdoc.fr/item/GDZPPN002542900}
}
DIAMOND, Harold. Chebyshev type estimates in prime number theory.. Seminaire de Théorie des Nombres de Bordeaux, Tome 3 (1973) pp. 1-11. http://gdmltest.u-ga.fr/item/GDZPPN002542900/