TY - JOUR AU - Subbiah, S. AU - Magill, K.D. jr. TI - Semigroups whose regular ... -classes form well-ordered chains. JO - Semigroup forum PY - 1981 VL - 22 SP - 89 EP - 92 KW - retract; semigroup of selfmaps; compact zero-dimensional metric space; regular J-classes; well-ordered chain; separating points UR - http://eudml.org/doc/134467 ER -