"PROJ": A program for calculating the electron projection function. - J. B. Collins; Andrew Streitwieser Jr.; John M. McKelvey (Comput. Chem., 1979)

A posteriori Error Estimation for the Spectral Deferred Correction Method. - Jehanzeb H. Chaudhry; J. B. Collins (CoRR, 2020)

A posteriori error estimation for the spectral deferred correction method. - Jehanzeb Hameed Chaudhry; J. B. Collins (J. Comput. Appl. Math., 2021)