@article{2223bd6642b14972abd292a900a6c85d,
title = "On certain infinite semigroups of order-decreasing transformations I",
author = "Abdullahi Umar",
note = "Funding Information: Acknowledgements. I wish to thank my research supervisor, Professor John M. Howie for his helpful comments and encouragement. I wish also to thank the Mathematical Institute, University of St. Andrews for providing me with excellent research facilities. Financial support from the Carnegie Trust for the Universities of Scotland, from CDE - International mathematical Union and from the University of Abuja is gratefully acknowledged.",
year = "1997",
doi = "10.1080/00927879708826035",
language = "English",
volume = "25",
pages = "2987--2999",
journal = "Communications in Algebra",
issn = "0092-7872",
publisher = "Taylor and Francis Ltd.",
number = "9",
}