@inproceedings{1055148,
    title = "The hopf decomposition in riesz spaces",
    author = "Zaharopol, Radu",
    year = "1991",
    pages = "189-194",
    publisher = "Springer-Verlag",
    booktitle = "Positive operators, riesz spaces, and economics. Proceedings of a conference at Caltech, Pasadena, California, April 16-20, 1990."
}