@MISC{FINSEQ_3.MIZ,
  AUTHOR = {Trybulec, Wojciech A.},
  TITLE = {Non-contiguous Substrings and
One-to-one Finite Sequences},
  DAY = {08},
  MONTH = {April},
  YEAR = {1990},
  ADDRESS1 = {Warsaw University},
  SUMMARY = {This text is a continuation of \cite{FINSEQ_1.ABS}. We prove a number
of theorems concerning both notions introduced there and one-to-one finite
sequences. We introduce a function that removes from a string elements of
the string that belongs to a given set.}}

