@techreport {TR-1990-015,
   type = {Technical Report},
   author = {editors: A. Ciepielewski, Evan Tick},
   title = {Workshop on Parallel  Implementation of Languages  for Symbolic Computation },
   institution = {University of Oregon, Computer and Information Sciences Department},
   number = TR-1990-015,
   month = 7,
   year = 1990,
   note = {Available at \url{https://www.cs.uoregon.edu/Reports/TR-1990-015.pdf}},
}