@techreport {TR-1990-021,
   type = {Technical Report},
   author = {Eugene Luks },
   title = {Lectures on Polynomial-time Computation in Groups },
   institution = {University of Oregon, Computer and Information Sciences Department},
   number = TR-1990-021,
   month = 12,
   year = 1990,
   note = {Available at \url{https://www.cs.uoregon.edu/Reports/TR-1990-021.pdf}},
}