Mysior, J.; and Waligorski, S "LOGOL, A String manipulation Language"

Bobrow, D. G. (ed) (1968) Bobrow, D. G. (ed) "Symbol Manipulation Languages and Techniques", Proceedings of the IFIP Working Conference on Symbol Manipulation Languages. North-Holland Publishing Co., Amsterdam, 1968  

Languages mentioned LOGOL {1968} String-manipulation language