TY - GEN DA - 1973 LA - eng PY - 1973 SN - 0931-6558 TI - A simple model of imperfect competition, where 4 are few and 6 are many UR - https://nbn-resolving.org/urn:nbn:de:0070-pub-29096584 Y2 - 2024-11-22T04:47:20 ER -