An elementary proof of a theorem of Bremner
\textit{A. Bremner} proved [Osaka J. Math. 16, 353-356 (1979; Zbl 0417.05008)] that the Diophantine equation \[ 3x^ 4-4y^ 4-2x^ 2+12y^ 2-9=0 \] has only two positive integer solutions \((x,y)=(1,1)\) and \((3,3)\). His proof is somewhat difficult. The author gives an elementary proof in this paper.
scientific article; zbMATH DE number 59717