TY - JOUR AU - Kalas, Josef AU - Rebenda, Josef TI - Asymptotic behaviour of a two-dimensional differential system with a nonconstant delay under the conditions of instability JO - Mathematica Bohemica PY - 2011 SP - 215 EP - 224 VL - 136 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/MB.2011.141584/ DO - 10.21136/MB.2011.141584 LA - en ID - 10_21136_MB_2011_141584 ER -