References
D. Bessis andM. Pusterla:Nuovo Cimento,54 A, 243 (1968).
J. Nuttal:Phys. Rev.,157, 1312 (1967).
G. Domokos:Phys. Rev.,159, 1387 (1967).
As in ref. (7) the coupling constant isλ/iπ 2.
V. Chung andD. R. Snider:Phys. Rev.,162, 1642 (1967).
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Fulbright fellow, supported in part by National Science Foundation.
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Caneschi, L. O 4 symmetric Padé approximants. Lettere Nuovo Cimento (1969-1970) 1, 219–222 (1969). https://doi.org/10.1007/BF02752485
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DOI: https://doi.org/10.1007/BF02752485