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@article{AM2_1972__8_136298, author = {L.W. Johnson and R.D. Riess}, title = {Estimates for {En} {(Xn} + 2m).}, journal = {Aequationes mathematicae}, pages = {258--262}, publisher = {mathdoc}, volume = {8}, year = {1972}, zbl = {0256.41017}, url = {http://geodesic.mathdoc.fr/item/AM2_1972__8_136298/} }
L.W. Johnson; R.D. Riess. Estimates for En (Xn + 2m).. Aequationes mathematicae, Tome 8 (1972), pp. 258-262. http://geodesic.mathdoc.fr/item/AM2_1972__8_136298/