TY  - JOUR
AU  - A. O. Ivanov
AU  - A. A. Tuzhilin
AU  - Lê Hông Vân
TI  - Nontrivial Critical Networks. Singularities of Lagrangians and a Criterion for Criticality
JO  - Matematičeskie zametki
PY  - 2001
SP  - 566
EP  - 580
VL  - 69
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_2001_69_4_a4/
LA  - ru
ID  - MZM_2001_69_4_a4
ER  -