@article{knuth74, author = {Knuth, Donald E.}, title = {Computer Programming As an Art}, journal = {Commun. ACM}, year = {1974}, pages = {667--673}, numpages = {7}, publisher = {ACM}, address = {New York, NY, USA} } @article{knuth92, author = {Knuth, Donald E.}, title = {Two notes on notation}, journal = {Amer. Math. Monthly}, volume = {99}, year = {1992}, pages = {403--422} } @book{lamport94, title = {LaTeX: A Document Preparation System}, author = {Lamport, Leslie}, year = {1994}, publisher = {Pearson Education India} }