JETP, Vol. 54,
No. 5,
p. 833 (November 1981)
(Russian original - ZhETF,
Vol. 81,
No. 5,
p. 1567,
November 1981
)
Logarithmic perturbation theory for a screened Coulomb potential and a charmonium potential
V.M. Vainberg, V.L. Eletskii, V.S. Popov
Received: May 28, 1981
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