@misc{oai:nipr.repo.nii.ac.jp:00010477,
 author = {Wei Yang and Kobayashi, Hideki and Suzuki, Rikie and Kenlo Nishida Nasahara},
 month = {Dec},
 title = {Retrieval of understory NDVI in sparse needleleaf forests over Alaska by MODIS BRDF data},
 year = {2014}
}