This book constitutes the refereed proceedings of the 11th International Conference on Formal Modeling and Analysis of Timed Systems, FORMATS 2013, held in Buenos Aires, Argentina, in August 2013.
The 18 revised full papers presented were carefully reviewed and selected from 41 submissions. The book covers topics of foundations and semantics (theoretical foundations of timed systems and languages; comparison between different models, such as timed automata, timed Petri nets, hybrid automata, timed process algebra, max-plus algebra, probabilistic models); methods and Tools (techniques, algorithms, data structures, and software tools for analyzing timed systems and resolving temporal constraints, e.g., scheduling, worst-case execution time analysis, optimization, model checking, testing, constraint solving, etc.); applications (adaptation and specialization of timing technology in application domains in which timing plays an important role, e.g., real-time software, hardware circuits, and problems of scheduling in manufacturing and telecommunications).

The Annual Conference of the European Association for Computer Science Logic, CSL 2001, was held in Paris, Palais de la Mutualit' e, on September 10-13, 2001. This was the 15th in a series of annual meetings, originally intended as International Workshops on Computer Science Logic, and the 10th to be held as the Annual Conference of the EACSL. The conference was organized by La- ratoire Sp' eci?cation et V' eri?cation (CNRS & ENS Cachan). The CSL 2001 program committee selected 39 of 91 submitted papers for presentation at the conference and publication in this proceedings volume. The submittedpapersoriginatedfrom26di?erentcountries.Eachpaperwasrefereed by at least three reviewers. In addition to the contributed papers, the scienti?c program of CSL 2001 - cluded three invited talks (Jean-Yves Girard, Peter O'Hearn, and Jan Van den Bussche). This volume includes the papers provided by the invited speakers as well as the selected contributed papers. The topics of the papers include: linear logic, descriptive complexity, semantics, higher-order programs, modal logics, veri?cation, automata, ?-calculus, induction, equational calculus, and constr- tive theory of types. I am most grateful to the members of the program committee and all the referees for their thorough work. I am also particularly indebted to Fran, cois Laroussinie, helped by Patricia Bouyer, Nicolas Markey, and Philippe Schn- belen, for the successful organization of this event. Special thanks to Emmanuel Fleury for the design of the beautiful "Notre-Dame de Paris" poster.

This volume constitutes the combined proceedings of the 4th International Workshops on Logic Program Synthesis and Transformation (LOPSTR '94) and on Meta-Programming
(META '94), held jointly in Pisa, Italy in June 1994.
This book includes thoroughly revised versions of the best papers presented at both workshops. The main topics addressed by the META papers are language extensions in support of meta-logic, semantics of meta-logic, implementation of meta-logic features, performance of meta-logic, and several applicational aspects. The LOPSTR papers are devoted to unfolding/folding, partial deduction, proofs as programs, inductive logic programming, automated program verification, specification and programming methodologies.