Carbon and nitrogen accumulation and decomposition from coarse woody debris in a naturally regenerated Korean red pine (pinus densiflora S. et Z.) forest, Nam Jin Noh, Tae Kyung Yoon, Rae-Hyun Kim, Nicholas Bolton, Choonsig Kim, Yowhan Son
Michigan Tech Publications

Canopy cover effects on nitrogen and phosphorus status in understory vegetation in oak and pine stands, Choonsig Kim, Terry L. Sharik, Martin Jurgensen
Michigan Tech Publications