Intra-night optical variability of core dominated radio quasars: the role of optical polarization A. Goyal, Gopal-Krishna, P. J. Wiita, G. C. Anupama, D. K. Sahu, R. Sagar and S. Joshi A&A, 544 (2012) A37 Published online: 26 July 2012 DOI: 10.1051/0004-6361/201218888