Representation of zero curvature for the system of nonlinear partial differential equations $$x_{\alpha ,z\bar z} = \exp (kx)_\alpha $$ and its integrability
1979 ◽
Vol 3
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pp. 489-494
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2014 ◽
Vol 7
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pp. 1165-1179
2009 ◽
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pp. 013502
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1997 ◽
Vol 125
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pp. 1483-1485
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1974 ◽
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pp. 520-530
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