TY - JOUR AU - Andres, Ján TI - On stability and instability of the roots of the oscillatory function in a certain nonlinear differential equation of the third order JO - Časopis pro pěstování matematiky PY - 1986 SP - 225 EP - 229 VL - 111 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CPM.1986.108157/ DO - 10.21136/CPM.1986.108157 LA - en ID - 10_21136_CPM_1986_108157 ER -