Elsevier, Discrete Mathematics, 1-3(134), p. 99-110, 1994
DOI: 10.1016/0012-365x(93)e0065-c
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Using elementary linear algebra techniques a detailed description of the suborbits of the action of PSL(2, q2) on the cosets of PGL(2, q) which allows a construction of the corresponding orbital graphs is given.