M. Burnat, “The method of characteristics and Riemann's invariants for multidimensional hyperbolic systems”, Sibirsk. Mat. Zh., 11:2 (1970), 279–309; Siberian Math. J., 11:2 (1970), 210–232
M. Burnat, “On the solution of a problem for Schrödinger's equation in an infinite three-dimensional space”, Dokl. Akad. Nauk SSSR, 112:2 (1957), 224–227
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