RT Journal Article SR Electronic T1 On Bounding Option Prices in Paretian Stable Markets JF The Journal of Derivatives FD Institutional Investor Journals SP 32 OP 43 DO 10.3905/jod.1998.408001 VO 5 IS 4 A1 Ivilina Popova A1 Peter Ritchken YR 1998 UL https://pm-research.com/content/5/4/32.abstract AB