Media type: E-Article Title: Ecological Studies of Weeds Contributor: Numata, Makoto Published: The Weed Science Society of Japan, 1991 Published in: Journal of Weed Science and Technology, 36 (1991) 2, Seite i-iii Language: Japanese DOI: 10.3719/weed.36.i ISSN: 1882-4757; 0372-798X Keywords: General Medicine Origination: Footnote: Access State: Open Access