1 @incollection{lambdadelta7,
3 title="{An Efficient Validation Procedure for the Formal System $\lambda\delta$}",
4 publisher="Centre for Applied Mathematics and Information Technology, Department of Mathematics, University of Azores",
5 address="Ponta Delgada, Portugal",
6 editor="F. {Ferreira} and H. {Guerra} and E. {Mayordomo} and J. {Rasga}",
7 booktitle="Local Proceedings of 6th Conference on Computability in Europe (CiE 2010)",
13 @techreport{lambdadelta6,
15 title="{Landau's ``Grundlagen der Analysis'' from Automath to lambda-delta}",
16 type="Technical Report",
17 institution="University of Bologna",
18 address="Bologna, Italy",
19 number="UBLCS 2009-16",
24 @article{lambdadelta5,
26 title="{The Formal System $\lambda\delta$}",
28 address="New York, NY, USA",
29 journal="Transactions on Computational Logic",
37 @incollection{lambdadelta4,
39 title="{Lambda Types on the Lambda Calculus with Abbreviations}",
40 publisher="Universit\`a di Siena",
41 address="Siena, Italy",
42 editor="S. {Barry Cooper} and T. F. {Kent} and B. {L\"owe} and A. {Sorbi}", @comment="{\"}",
43 booktitle="Local Proceedings of 3rd Conference on Computability in Europe (CiE 2007) Technical Report 487",
49 @techreport{lambdadelta3,
51 title="{Lambda-Types on the Lambda-Calculus with Abbreviations}",
52 type="Technical Report",
53 institution="University of Bologna",
54 address="Bologna, Italy",
55 number="UBLCS 2006-25",
60 @techreport{lambdadelta2,
62 title="{Lambda-Types on the Lambda-Calculus with Abbreviations: a Certified Specification}",
63 type="Technical Report",
64 institution="University of Bologna",
65 address="Bologna, Italy",
66 number="UBLCS 2006-01",
73 title="{lambda-delta}",
74 howpublished="Formal specification with the proof assistant \textsc{coq} 7.3.1",
77 note="Available at the lambda-delta Web site: {http://helm.cs.unibo.it/lambda-delta/}"