RT Journal Article SR Electronic T1 Very Fast Algorithms for Barrier Option Pricing and the Ballot Problem JF The Journal of Derivatives FD Institutional Investor Journals SP 68 OP 79 DO 10.3905/jod.1998.407999 VO 5 IS 3 A1 Yuh-Dauh Lyuu YR 1998 UL https://pm-research.com/content/5/3/68.abstract AB