Dokl. Akad. Nauk SSSR, 1980 Volume 253, Number 4,Pages 857–859(Mi dan43786)
MATHEMATICAL PHYSICS
Matrix elements of the principal series of unitary representations of the de Sitter group in the
$\mathrm{SO}(4.1)\supset\mathrm{E}(3)\supset\mathrm{T}_3$ basis