TY - JOUR AU - V. A. Kolmykov TI - On the investigation of the stability of hydrocarbon molecules: zero pulsations in the spectra of periodic graphs JO - Sibirskij žurnal industrialʹnoj matematiki PY - 2007 SP - 90 EP - 95 VL - 10 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SJIM_2007_10_1_a8/ LA - ru ID - SJIM_2007_10_1_a8 ER -