@unpublished{LevendorskiiBoyarchenko2008,
  author  = {Sergei Z. Levendorskii and Svetlana I. Boyarchenko},
  title   = {On rational pricing of derivative securities for a familiy of non-Gaussian processes},
  institution = {Institut f{\"u}r Mathematik},
  series    = {Preprint},
  number    = {(1998) 07},
  year    = {2008},
}