@incollection{Zhang12,
author = {Hong Zhang},
title = {Optical Touch Screen and Its Application as a Next Generation Classroom Response System},
booktitle = {Virtual Reality and Environments},
publisher = {IntechOpen},
address = {Rijeka},
year = {2012},
editor = {Cecilia Sik Lanyi},
chapter = {6},
doi = {10.5772/36731},
url = {https://doi.org/10.5772/36731}
}