@article{weko_60215_1,
   author	 = "Makoto,Arisawa",
   title	 = "On the Formal Grammatical Structure of ALGOL 60",
   journal	 = "Information Processing in Japan",
   year 	 = "1971",
   volume	 = "11",
   number	 = "0",
   pages	 = "30--37",
   month	 = "jan"
}