@book
{TN_libero_mab2,
author = {
Lakotkina, Olʹga Julʹevna
AND
Kovaleva, L. M.
},
title = {
Klinika, mikrobiologiia i immunologiia khronicheskikh otitov
},
publisher = {Meditsina},
year = {1973},
address = {
Leningrad
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}