@book {PDE_Farlow,
    AUTHOR = {Farlow, Stanley J.},
     BOOKTITLE = {Partial Differential Equations for Scientists and Engineers (New York, New York},
   PUBLISHER={Dover},
 ADDRESS={New York, USA},
      YEAR = {1993},
      ISSN = {0486-67620},
}

@article {MR1202005,
    AUTHOR = {Lundberg, Bruce N. and Poore, Aubrey B.},
     TITLE = {Numerical continuation and singularity detection methods for
              parametric nonlinear programming},
   JOURNAL = {SIAM J. Optim.},
  FJOURNAL = {SIAM Journal on Optimization},
    VOLUME = {3},
      YEAR = {1993},
    NUMBER = {1},
     PAGES = {134--154},
      ISSN = {1052-6234},
     CODEN = {SJOPE8},
   MRCLASS = {90C31},
  MRNUMBER = {1202005 (93m:90085)},
MRREVIEWER = {Hubertus Th. Jongen},
       DOI = {10.1137/0803007},
       URL = {http://dx.doi.org/10.1137/0803007},
}