Crank, J; Nicolson, Phyllis (1947). "A practical method for numerical evaluation of solutions of partial differential equations of the heat-conduction type". Mathematical Proceedings of the Cambridge Phil. Society. .43(1) (1): 50–67. Bibcode:1947PCPS...43...50C. doi:10.1017/S0305004100023197.
Crank, J; Nicolson, Phyllis (1947). "A practical method for numerical evaluation of solutions of partial differential equations of the heat-conduction type". Mathematical Proceedings of the Cambridge Phil. Society. .43(1) (1): 50–67. Bibcode:1947PCPS...43...50C. doi:10.1017/S0305004100023197.
1929-, Froese Fischer, Charlotte (2003). Douglas Rayner Hartree : his life in science and computing. Singapore: World Scientific. ISBN9789812795014. OCLC666958945.{{cite book}}: תחזוקה - ציטוט: numeric names: authors list (link)