McDonald, David B. Fahlman, Scott E. Wholey, Skef Internal design of CMU common Lisp on the IBM RT PC Computer Science Department COMMON LISP (Computer program language) 2007-01-01
    https://kilthub.cmu.edu/articles/journal_contribution/Internal_design_of_CMU_common_Lisp_on_the_IBM_RT_PC/6606587
10.1184/R1/6606587.v1