@inproceedings{paperid:1009741,
author = {Rashed Mohassel, M0hammad Hassan},
title = {Study of Phenological Stages in Russian Knapweed},
booktitle = {5th Meeting International Weed Science Congress},
year = {2008},
location = {ونکوور},
keywords = {Russian knapweedو flowering و drying},
}