On the equation $aX^4-bY^2=2$

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S. Akhtari, A. Togbé, P. G. Walsh Acta Arithmetica 131 (2008), 145-169 MSC: Primary 11D25; Secondary 11B39. DOI: 10.4064/aa131-2-3

S. AkhtariDepartment of Mathematics
University of British Columbia
Vancouver, BC, Canada V6T 1Z2
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A. TogbéDepartment of Mathematics
Purdue University North Central
1401 S. U.S. 421
Westville, IN 46391, U.S.A.
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P. G. WalshDepartment of Mathematics
University of Ottawa
585 King Edward St.
Ottawa, ON, Canada K1N 6N5
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