TY - JOUR AU - Rangachev, Antoni TI - The evolving notion of multiplicity as an invariant in singularity theory JO - Mathematics and Education in Mathematics PY - 2022 SP - 89 EP - 99 VL - 51 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MEM_2022_51_a6/ LA - en ID - MEM_2022_51_a6 ER -