![](/images/ico/ico_close.png)
![](/images/ico/ico5.png)
Author: Grognet S.
Publisher: Springer Publishing Company
ISSN: 0046-5755
Source: Geometriae Dedicata, Vol.79, Iss.2, 2000-02, pp. : 219-227
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract