@conference {McWh:96, title = {AlgorithmExplorer: A Student-Centered Algorithm Animation System}, booktitle = {Proceedings of the IEEE Symposium on Visual Languages}, year = {1996}, pages = {174{\textendash}181}, publisher = {IEEE Computer Society Press}, organization = {IEEE Computer Society Press}, isbn = {0-8186-7508-X}, author = {J. D. McWhirter} }