@article{10_4064_sm_61_1_7_19,
     author = {J. Pym and H. Vasudeva},
     title = {The algebra of finitely additive measures on a partially ordered semigroup},
     journal = {Studia Mathematica},
     pages = {7--19},
     publisher = {mathdoc},
     volume = {61},
     number = {1},
     year = {1977},
     doi = {10.4064/sm-61-1-7-19},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-61-1-7-19/}
}