00990nam a2200277 i 450099100119941970753620020507185102.0950112s1970 uk ||| | eng b10814577-39ule_instLE01308587ExLDip.to Matematicaeng519.4AMS 68Q45Lucas, P.536306On the formal description of PL/I /by P. Lucas and K. WalkOxford :Pergamon Press,1970v, 181 p. ;25 cm.Pubbl. come vol. 6 pt. 3 della rivista "Annual review in automatic programming"Formal languagesWalk, K..b1081457721-09-0628-06-02991001199419707536LE013 68Q LUC11 (1970)12013000019215le013-E0.00-l- 00000.i1092053528-06-02On the formal description of PL925307UNISALENTOle01301-01-95ma -enguk 01