Yz. Zhang et Md. Gould, ON UNIVERSAL R-MATRIX FOR QUANTIZED NONTWISTED RANK 3 AFFINE KM ALGEBRAS, letters in mathematical physics, 29(1), 1993, pp. 19-32
Explicit formulas of the universal R-matrix are given for all quantize
d nontwisted rank 3 affine KM algebras U(q)(A2(1)), U(q)(C2(1)) and U(
q)(G2(1)).