Text: "Gravitation. - Sur le caractere non-lineaire des ondes gravifiques." [Gravitation: on the nonlinear character of gravity waves]. Comptes rendus des seances de l' Academie des Sciences. Series A et B. (Paris). 269(17), Oct. 29, 1969, Serie A. p. 826-828.

See Also: gravitational fields, gravitational waves, nonlinear systems fundamentals of physics.

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