@Article{,
AUTHOR = {Deli Gao},
TITLE = {Preface},
JOURNAL = {Computer Modeling in Engineering \& Sciences},
VOLUME = {90},
YEAR = {2013},
NUMBER = {1},
PAGES = {0--0},
URL = {http://www.techscience.com/CMES/v90n1/33732},
ISSN = {1526-1506},
ABSTRACT = {This article has no abstract.},
DOI = {}
}