TY - JOUR AU - Mitrea, Marius TI - On Bojarski’s index formula for nonsmooth interfaces JO - Electronic research announcements of the American Mathematical Society PY - 1999 SP - 40 EP - 46 VL - 05 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-99-00060-8/ DO - 10.1090/S1079-6762-99-00060-8 ID - ERAAMS_1999_05_a5 ER -