TY - JOUR AU - Kaparin, Vadim AU - Kotta, Ülle TI - Transformation of nonlinear state equations into the observer form: Necessary and sufficient conditions in terms of one-forms JO - Kybernetika PY - 2015 SP - 36 EP - 58 VL - 51 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14736/kyb-2015-1-0036/ DO - 10.14736/kyb-2015-1-0036 LA - en ID - 10_14736_kyb_2015_1_0036 ER -