TY - JOUR AU - Ali Feizmohammadi AU - Matti Lassas AU - Lauri Oksanen TI - Inverse problems for nonlinear hyperbolic equations with disjoint sources and receivers JO - Forum of Mathematics, Pi PY - 2021 VL - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1017/fmp.2021.11/ DO - 10.1017/fmp.2021.11 LA - en ID - 10_1017_fmp_2021_11 ER -