$a Kp. Funkcii Besselja / É. Grej i G. B. Mét'juz. - Moskva, 1953.
670
$a LCC online
670
$a A treatisce on Bessel functions and their applications to physics / by Andrew Gray and G. B. Mathews ; 2 ed. prep. by A. Gray and T. M. Macrobert. - London, 1952.