Graffi S.; Parmeggiani A., Quantum evolution and classical flow in complex phase space, «COMMUNICATIONS IN MATHEMATICAL PHYSICS», 1990, 128, pp. 393 - 409 [Scientific article]
Parmeggiani A., On the parametrix for a class of Schrödinger operators with potentials of quadratic growth, «ANNALI DI MATEMATICA PURA ED APPLICATA», 1988, 152, pp. 237 - 258 [Scientific article]
