Prokhorov, V.; Komashko, V.; Kaminsky, G.; Lee, Y.; Park, S.; Hyun, Y.; Svetchnikov, V.; Kim, K.; Rhee, J. Magnetic and Transport Properties of Charge Ordered La_0.5Ca_0.5MnO₃ and La_0.4Ca_0.6MnO₃ Films. Fiz. Nizk. Temp. 2005, 32, 176-183.