Crisfield, M. A. (1982). Variable step-lengths for non-linear structural analysis. Transport and Road Research Laboratory.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCrisfield, M. A. Variable Step-lengths for Non-linear Structural Analysis. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCrisfield, M. A. Variable Step-lengths for Non-linear Structural Analysis. Transport and Road Research Laboratory, 1982.
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