TY - JOUR AU - Vrabel, Robert TI - Boundary layer phenomenon for three -point boundary value problem for the nonlinear singularly perturbed systems JO - Kybernetika PY - 2011 SP - 644 EP - 652 VL - 47 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KYB_2011__47_4_a9/ LA - en ID - KYB_2011__47_4_a9 ER -