@null{6750040, 
author={Yang, H. and Meinel, C.}, 
journal={Learning Technologies, IEEE Transactions on}, 
title={Content Based Lecture Video Retrieval Using Speech and Video Text Information}, 
year={2014}, 
month={}, 
volume={PP}, 
number={99}, 
pages={1-1}, 
keywords={Image segmentation;Indexing;Optical character recognition software;Semantics;Speech;Video signal processing;Visualization}, 
doi={10.1109/TLT.2014.2307305}, 
ISSN={1939-1382},}