@article{700279,
     title = {Some examples for the extended use of the parametric representation method},
     booktitle = {Proceedings of Equadiff 9},
     series = {GDML\_Books},
     publisher = {Masaryk University},
     address = {Brno},
     year = {1998},
     pages = {101-109},
     url = {http://dml.mathdoc.fr/item/700279}
}

Simon, Peter L.; Farkas, Henrik. Some examples for the extended use of the parametric representation method, dans Proceedings of Equadiff 9, GDML_Books,  (1998), pp. 101-109. http://gdmltest.u-ga.fr/item/700279/