Continue writing the spec (kill me...)

doc/spec/spec.bib

@@ -28,4 +28,46 @@ keywords = {data structures, hash-consing, sharing},
 location = {Portland, Oregon, USA},
 series = {ML ’06}
 }
+
+@MISC{MonPC,
+    author = {Graham Hutton and Erik Meijer},
+    title = {Monadic Parser Combinators},
+    year = {1996}
+}
+
+@article{MemoParsing,
+author = {Johnson, Mark},
+title = {Memoization in Top-down Parsing},
+year = {1995},
+issue_date = {September 1995},
+publisher = {MIT Press},
+address = {Cambridge, MA, USA},
+volume = {21},
+number = {3},
+issn = {0891-2017},
+journal = {Comput. Linguist.},
+month = sep,
+pages = {405–417},
+numpages = {13}
+}
+
+@inproceedings{Meerkat,
+author = {Izmaylova, Anastasia and Afroozeh, Ali and Storm, Tijs van der},
+title = {Practical, General Parser Combinators},
+year = {2016},
+isbn = {9781450340977},
+publisher = {Association for Computing Machinery},
+address = {New York, NY, USA},
+url = {https://doi.org/10.1145/2847538.2847539},
+doi = {10.1145/2847538.2847539},
+booktitle = {Proceedings of the 2016 ACM SIGPLAN Workshop on Partial Evaluation and Program Manipulation},
+pages = {1–12},
+numpages = {12},
+keywords = {continuation-passing style, left recursion, higher-order functions, Parser combinators, memoization, general parsing},
+location = {St. Petersburg, FL, USA},
+series = {PEPM ’16}
+}
+  
+
+