@techreport {TR-1991-025,
   type = {Technical Report},
   author = {William Clinger, Jonathan Rees},
   title = {Revised Report on the Algorithmic Language Scheme},
   institution = {University of Oregon, Computer and Information Sciences Department},
   number = TR-1991-025,
   month = 2,
   year = 1992,
   note = {Available at \url{https://www.cs.uoregon.edu/Reports/TR-1991-025.pdf}},
}