An active product state tracking architecture in logistics sensor networks. - Sang Hoon Woo; Ja Young Choi; Choonjong Kwak; Chang Ouk Kim (Comput. Ind., 2009)

POSMOS: POSCO middleware for open systems in the iron-and-steel-making level 2 system. - Dohun Kim; Ja Young Choi; Young Bok Park (SMC, 2012)