@InCollection{NunoXXX:91a,
  author =       {Juan Carlos {Nu\~no} and Peter F Stadler},
  title =        {Efectos de la Mutaci\'on sobre una Red 
                  Catal{\'\i}tica Formada por Especies
		  Autoreplicativas},
  booktitle =    {Abstract Volume of 
                  III Congreso de la Sociedad de Biofisica de
		  Espa\~na, Madrid, Dec.\ 4-7 1991},
  year =         {1991},
  pages =        {22},
}

@InCollection{StadlerXXX:91a,
  title = 	 {A Perturbation Approach to Mutation in
                  Autocatalytic Reaction Networks},
  author = 	 {Peter F Stadler},
  booktitle =    {Abstract Volume of the 1st International Conference 
                  on Mathematics Applied to Biology and Medicine, 
                  Jan.\ 7-11 1991, L'Alpe d'Huez, France.},
  year = 	 {1991},
  pages =        {236},
}

@InCollection{StadlerXXX:92,
  author =       {Peter F Stadler},
  title =        {Complex Combinatory Landscapes},
  booktitle =    {Proceedings of the 1st International Meeting: 
                  Young Perspectives  on Molecular Biotechnology
                  MPI Biophysikalische Chemie, G{\"o}ttingen, 23-29 Feb
		  1992},
  pages =        {41},
  year =         {1992},
}

@article{Bornberg:94XXX,
   author = {Erich G. Bornberg-Bauer and Peter F. Stadler},
   title =  {Random Structures and Evolution of Biopolymers},
   journal = {Ber. Bunsenges.},
   volume = {98},
   pages  = {1128},
   year =   {1994},
   note =   {Abstract},
}