Journal of Experimental and Theoretical Physics

JETP, Vol. 33, No. 6, p. 1088 (December 1971)
(Russian original - ZhETF, Vol. 60, No. 6, p. 2019, December 1971 )

Ground State Energy of Two-electron Atoms with an Arbitrary Nuclear Charge $Z{\leq}137$
G.L. Klimchitskaya, L.M. Labzovskii

Received: December 17, 1970

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