@article{Lorch:1964:MDZ,
author = {Lorch, Lee and Szeg\H{o}, Peter},
title = {Monotonicity of the differences of zeros of {B}essel functions
as a function of order},
journal = {Proc. Amer. Math. Soc.},
fjournal = {Proceedings of the American Mathematical Society},
volume = {15},
year = {1964},
number = {1},
pages = {91–96},
issn = {0002-9939},
mrclass = {33.25},
mrnumber = {MR0158106 (28 \#1332)},
mrreviewer = {F. W. J. Olver},
links = {\URL[FullText]{http://links.jstor.org/sici?sici=0002-9939%28196402%2915%3A1%3C91%3AMOTDOZ%3E2.0.CO%3B2-T}},
zblno = {0126.08603}}