TY - JOUR AU - Wenpeng Zhang TI - On the difference between a D. H. Lehmer number and its inverse modulo q JO - Acta Arithmetica PY - 1994 SP - 255 EP - 263 VL - 68 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa-68-3-255-263/ DO - 10.4064/aa-68-3-255-263 LA - en ID - 10_4064_aa_68_3_255_263 ER -