Orszag, Steven A. (September 1972). "Comparison of Pseudospectral and Spectral Approximation". Studies in Applied Mathematics. 51 (3): 253–259. doi:10.1002/sapm1972513253.
Friesner, Richard A.; Murphy, Robert B.; Beachy, Michael D.; Ringnalda, Murco N.; Pollard, W. Thomas; Dunietz, Barry D.; Cao, Yixiang (April 1999). "Correlated ab Initio Electronic Structure Calculations for Large Molecules". The Journal of Physical Chemistry A. 103 (13): 1913–1928. Bibcode:1999JPCA..103.1913F. doi:10.1021/jp9825157.
Friesner, Richard A.; Murphy, Robert B.; Beachy, Michael D.; Ringnalda, Murco N.; Pollard, W. Thomas; Dunietz, Barry D.; Cao, Yixiang (April 1999). "Correlated ab Initio Electronic Structure Calculations for Large Molecules". The Journal of Physical Chemistry A. 103 (13): 1913–1928. Bibcode:1999JPCA..103.1913F. doi:10.1021/jp9825157.