Jing M. ChenJosef CihlarQuantifying the effect of canopy architecture on optical measurements of leaf area index using two gap size analysis methods.777-787199533IEEE Trans. Geosci. Remote. Sens.3https://doi.org/10.1109/36.387593https://www.wikidata.org/entity/Q113176103db/journals/tgrs/tgrs33.html#ChenC95