Finance and Stochastics. 2004;8(4):553-577. DOI:10.1007/s00780-004-0132-9
Finance and Stochastics. 2006;10(2):222-249. DOI:10.1007/s00780-006-0001-9
Finance and Stochastics. 2006;10(2):250-275. DOI:10.1007/s00780-006-0004-6
Finance and Stochastics. 2016;20(4):1061-1096. DOI:10.1007/s00780-016-0307-1
Finance and Stochastics. 2005;9(3):389-398. DOI:10.1007/s00780-004-0143-6