著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) VAN ALTEN C. J.,An algebraic study of residuated ordered monoids and logics without exchange and contraction,"Ph. D. thesis, University of Natal",,,1998,,,,https://cir.nii.ac.jp/crid/1570291225200469888,