@inproceedings{paperid:1015537,
author = {Ghane Ostadghassemi, Fateme Helen and Hamed Labbafian, Zainab},
title = {A VAN‐KAMPEN THEOREM TYPE FOR HOMOTOPY GROUPS OF WEAK JOINS},
booktitle = {The 5th Seminar on Geometry and Topology},
year = {2009},
location = {سنندج, IRAN},
keywords = {Homotopy group},
}