TY - JOUR A1 - Wahrenburg, Mark T1 - Hedging oil price risk : lessons from Metallgesellschaft Y1 - 2009 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/6989 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-70143 N1 - zuerst in: Chicago Board of Trade Research Symposium Proceedings, 1996, Part 2, S. 29-47 SP - 1 EP - 20 ER -