E. Alemán, Coauthorship ties in the Colombian congress, Colombia Internacional, issue.83, pp.23-42, 2002.

E. Alemán and E. Calvo, Explaining Policy Ties in Presidential Congresses: A Network Analysis of Bill Initiation Data, Political Studies, vol.387, issue.7, pp.61-356, 2013.
DOI : 10.1017/CBO9780511615641

K. A. Braaon and S. M. Rouse, Networks in the legislative arena: How group dynamics aaect cosponsorship, Legislative Studies arterly, vol.36, issue.3, pp.423-460, 2011.

M. Chiru and . Neamt¸uneamt¸u, (jun) Parliamentary representation under changing electoral rules: Cosponsorship in the Romanian parliament. Inaugural General Conference of the ECPR Standing Group on Parliaments: 'Parliaments in Changing Times, 2012.

J. Clark, . Hayes, and V. Caro, Multimember Districts and the Substantive Representation of Women: An Analysis of Legislative Cosponsorship Networks, Politics & Gender, vol.25, issue.01, pp.1-30, 2013.
DOI : 10.2307/439862

B. Coulmont, 2011 (sep) Travail de députés

S. J. Cranmer, . Desmarais, and A. Bruce, Inferential Network Analysis with Exponential Random Graph Models, Political Analysis, vol.90, issue.01, pp.66-86, 2011.
DOI : 10.1177/0002716204272590

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

H. Döring and . Manow, Parliaments and governments database (Parl- Gov): Information on parties, elections and cabinets in modern democracies, pp.14-26, 2014.

J. H. Fowler, Connecting the Congress: A Study of Cosponsorship Networks, Political Analysis, vol.7, issue.04, pp.456-487, 2006.
DOI : 10.1007/BF02289527

J. H. Fowler, Legislative cosponsorship networks in the US House and Senate, Social Networks, vol.28, issue.4, pp.454-465, 2006.
DOI : 10.1016/j.socnet.2005.11.003

O. M. Fruchterman, . Reingold, and M. Edward, Graph drawing by forcedirected placement. Sooware: Practice and Experience, pp.1129-1164, 1991.
DOI : 10.1002/spe.4380211102

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

K. Gregor, 2013 (aug) Visualizing politics: Network analysis of bill sponsors

J. H. Gross, J. H. Kirkland, and . Shalizi, Cosponsorship in the U.S. Senate: A multilevel two-mode approach to detecting subtle social predictors of legislative support, Cosma, vol.2012, issue.5

J. Lee, H. Jo, J. Yoon, and . Won, Network Analysis of Korean legislators using Bipartite Network Projection, Journal of Internet Computing and Services, vol.15, issue.4, pp.103-110, 2014.
DOI : 10.7472/jksii.2014.15.4.103

J. H. Kirkland, Hypothesis Testing for Group Structure in Legislative Networks, State Politics & Policy Quarterly, vol.13, issue.2, pp.225-243, 2013.
DOI : 10.1177/1532440012473842

J. H. Kirkland, Chamber Size Effects on the Collaborative Structure of Legislatures, Legislative Studies Quarterly, vol.387, issue.2, pp.169-198, 2014.
DOI : 10.1111/lsq.12041

E. A. Leicht, . Newman, and E. J. Mark, Community Structure in Directed Networks, Physical Review Letters, vol.100, issue.11, p.118703, 2008.
DOI : 10.1103/PhysRevLett.100.118703

URL : http://arxiv.org/abs/0709.4500

J. Micozzi and . Pablo, Alliance for progress? multilevel ambition and paaerns of cosponsorship in the Argentine House, Comparative Political Studies, issue.8, pp.47-1186, 2014.

J. Moody, . Mucha, and J. Peter, Portrait of Political Party Polarization, Network Science, vol.74, issue.01, pp.119-121, 2013.
DOI : 10.1086/226141

S. Munzert, . Rubba, . Christian, . Meißner, . Peter et al., Automated data collection with R: A practical guide to web scraping and text mining, 2015.
DOI : 10.1002/9781118834732

M. E. Newman and M. Girvan, Finding and evaluating community structure in networks, Physical Review E, vol.69, issue.2, p.26113, 2004.
DOI : 10.1103/PhysRevE.69.026113

URL : http://arxiv.org/abs/cond-mat/0308217

R. Core-team, R: A language and environment for statistical computing. R Foundation for Statistical Computing, 2015.

G. Sartori, Parties and party systems: A framework for analysis, 1976.

T. A. Snijders, Statistical Models for Social Networks, Annual Review of Sociology, vol.37, issue.1, pp.131-153, 2011.
DOI : 10.1146/annurev.soc.012809.102709

A. Waugh, . Scoo, . Pei, . Liuyi, J. H. Fowler et al., (jul) Party polarization in Congress: A network science approach, 2009.

Y. Zhang, A. J. Friend, A. L. Traud, . Porter, A. Mason et al., Community structure in, Congressional cosponsorship networks. Physica A: Statistical Mechanics and its Applications, pp.387-1705, 2008.
URL : https://hal.archives-ouvertes.fr/hal-00702676