The Proceedings of the 4ESHS have been published on line. You can access them through the link below.
Proceedings of the 4ESHS (PDF file, 19.98 MB, 1198 pages)
Full citation reference:
ROCA-ROSELL, A. (ed.) (2012). The Circulation of Science and Technology: Proceedings of the 4th International Conference of the ESHS, Barcelona, 18-20 November 2010. Barcelona: SCHCT-IEC. ISBN: 978-84-9965-108-8.