Open AccessThe Cost Structure of the Lines of Urban Railway
Author(s) -
Soo Hyun Kim,
Hun Young Jung
Publication year - 2014
Publication title -
ksce journal of civil and environmental engineering research/journal of the korean society of civil engineers/taehan t'omok hakhoe nonmunjip
Language(s) - English
Resource type - Journals
eISSN - 2287-934X
pISSN - 1015-6348
DOI - 10.12652/ksce.2014.34.5.1559
Subject(s) - inefficiency , metropolitan area , function (biology) , frontier , transport engineering , engineering , business , economics , geography , microeconomics , archaeology , evolutionary biology , biology