@Article{H03,
  Title                    = {A new analytic approach to the {S}itnikov problem},
  Author                   = {Hagel, J.~},
  Journal                  = {Celestial Mech.~Dynam.~Astronom.},
  Year                     = {1992},
  Number                   = {3},
  Pages                    = {267--292},
  Volume                   = {53},
  Ccm-nr                   = {7/92},
  Coden                    = {CLMCAV},
  Date-added               = {2008-11-01 12:19:48 +0000},
  Date-modified            = {2008-11-01 12:19:48 +0000},
  Fjournal                 = {Celestial Mechanics \& Dynamical Astronomy. An International Journal of Space Dynamics},
  ISSN                     = {0923-2958},
  Mrclass                  = {70F07},
  Mrnumber                 = {MR1166070 (93b:70010)}
}