@article{700640,
     title = {On generalized ordered $p$- and $M$-spaces},
     booktitle = {General topology and its relations to modern analysis and algebra IV},
     series = {GDML\_Books},
     publisher = {Society of Czechoslovak Mathematicians and Physicist},
     address = {Praha},
     year = {1977},
     pages = {[521]-525},
     mrnumber = {MR0454934},
     zbl = {0375.54021},
     url = {http://dml.mathdoc.fr/item/700640}
}

van Wouwe, J. M. On generalized ordered $p$- and $M$-spaces, dans General topology and its relations to modern analysis and algebra IV, GDML_Books,  (1977), pp. [521]-525. http://gdmltest.u-ga.fr/item/700640/