@techreport{kam1023,
 author = {J. Heuvel, D. Kr\'al', M. Kupec, J.-S. Sereni, and J. Volec},
 title = {Extensions of Fractional Precolorings show Discontinuous Behavior},
 institution = {KAM-DIMATIA Series},
 year = {2012},
 number = {1023},
 type = {prepublication}
}