@article{AFM_1975_581-600_a10,
     author = {Juhani Karhum\"aki},
     title = {The family of {PDOL} growth-sets is properly included in the family of {DOL} growth-sets},
     journal = {Annales Fennici Mathematici},
     publisher = {mathdoc},
     volume = {581-600},
     year = {1975},
     doi = {10.5186/aasfm.1975.590},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1975.590/}
}