Differential game logic for hybrid games

@TECHREPORT{Platzer12:dGL,
	ref = {DBLP:journals/tocl/Platzer15},

  author    = {Andr{\'e} Platzer},
  title     = {Differential Game Logic for Hybrid Games},
  number    = {CMU-CS-12-105},
  year      = {2012},
  month     = {March},
  institution = {School of Computer Science,
               Carnegie Mellon University},
  address   = {Pittsburgh, PA},
  pdf = {http://reports-archive.adm.cs.cmu.edu/anon/2012/CMU-CS-12-105.pdf}
}```