Construction of solutions of a partial differential equation with constant coefficients in the form of formal series. I
1992 ◽
Vol 31
(3)
◽
pp. 285-291
◽
1994 ◽
Vol 34
(2)
◽
pp. 114-121
◽
2016 ◽
Vol 30
(28n29)
◽
pp. 1640020
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1973 ◽
Vol 1973
◽
pp. 1-9