TY - JOUR AU - Ronald Burthe TI - The average least witness is 2 JO - Acta Arithmetica PY - 1997 SP - 327 EP - 341 VL - 80 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa-80-4-327-341/ DO - 10.4064/aa-80-4-327-341 LA - en ID - 10_4064_aa_80_4_327_341 ER -