- document
- Liu, K.C. (author) master thesis 2013
- document
- Liu, K.C. (author) master thesis 2013
- document
- Liu, Yuming (author) journal article 2012
- document
- Liu, Yuming (author) journal article 2011
- document
- Liu, H. (author) journal article 2010
- document
- Liu, X. (author) journal article 2009
- document
- Liu, Yuming (author) journal article 1998
- document
- Liu, Ping (author) doctoral thesis 1991
- document
- Liu, P. (author) master thesis 1989
- document
- Liu, Ping (author) report 1989