Arkko, J., Hirvisalo, V., Kuusela, J., Nuutila, E., Tamminen, M.: Programming in XE, Report HTKK-TKO-C33, 1989, 32 p. The report consists of the header page, the contents, the report text, and the index.
Arkko, J., Hirvisalo, V., Kuusela, J., Nuutila, E., Tamminen, M., XE Reference Manual, Report HTKK-TKO-A26, 1989, 109 p. The report consists of the header page, the report text, and the appendices A and B (C is in the report text). The contents and the index are unfortunately missing.
Arkko, J., Hirvisalo, V., Kuusela, J., Nuutila, E. and Tamminen, M., Rule-Based Expression Mechanisms for Procedural Languages, Computational Intelligence 5(1989)4.
Arkko, J., Hirvisalo, V., Kuusela, J., Nuutila, E. and Tamminen, M., Some Experiences with Rules in Procedural Programming Languages, Proc. International Computer Science Conference '88, Hong Kong, Dec. 19-21 1988, pp. 712-718.
Kuusela, J., Arkko, J., Hirvisalo, V., Nuutila, E., Tamminen, M.: XE Programming Environment User's Guide, Report HTKK-TKO-C35, 1989, 15 p. The report consists of the header page and the report text. Two pictures are missing.
Arkko, J., Hirvisalo, V., Kuusela, J., Nuutila, E., Tamminen, M.: Notes on XE Run Time Characteristics and Code Generation, Report HTKK-TKO-C37, 1989, 27 p. The report consists of the header page, the report text, and the appendix.
Arkko, J., Hirvisalo, V., Nuutila, E., Kuusela, J., Tamminen, M.: XE Programming Environment Implementation Notes, Report HTKK-TKO-C40, 1989, 119 p. The report consists of the header page and the report text. Many figures are missing.
Juha Kuusela: An integrated programming environment for the XE language, Tech. lic. thesis, Technical report TKO-A29, Helsinki University of Technology, Laboratory of Information Processing Science, 63 pages, 1990.
Esko Nuutila: Combining rule-based and procedural programming in the XC and XE programming languages. Tech. lic. thesis, Technical report TKO-A28, Helsinki University of Technology, Laboratory of Information Processing Science, 66 pages, 1990.