• Reactive testing of nondeterministic systems by test purpose-directed testerVain, Jüri; Kull, Andres; Kääramees, Marko; Markvardt, Maili; Raiend, KulloModel-based testing for embedded systems2012 / p. 425-452 : ill https://www.researchgate.net/publication/234117187_Reactive_Testing_of_Nondeterministic_Systems_by_Test_Purpose-Directed_Tester