TY - JOUR AU - E. Scott TI - Wave propagation in a stratified medium JO - Annales Polonici Mathematici PY - 1956 SP - 213 EP - 217 VL - 3 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-3-2-213-217/ DO - 10.4064/ap-3-2-213-217 LA - en ID - 10_4064_ap_3_2_213_217 ER -