@article{01979625,
title = {On the upper envelopes of a family of },
journal = {Vladikavkazski\u\i\ Matematicheski\u\i\ Zhurnal},
volume = {3},
year = {2001},
pages = {8-16},
zbl = {1030.47028},
language = {en},
url = {http://dml.mathdoc.fr/item/01979625}
}
Radnaev, V.A. On the upper envelopes of a family of . Vladikavkazskiĭ Matematicheskiĭ Zhurnal, Tome 3 (2001) pp. 8-16. http://gdmltest.u-ga.fr/item/01979625/