du Masle, J. "An Evaluation of the LE/1 Network Command Language Designed for the SOC Network"

(1975) Unger, Claus (Ed.) Command languages: Proceedings of the IFIP Working Conference on Command Languages (Lund, Sweden, August 1974) North-Holland, 1975 Amsterdam, The Netherlands  

Languages mentioned LE/1 {1973} LE/2 {1974}