The DiskMass Survey - VI. Gas and stellar kinematics in spiral galaxies from PPak integral-field spectroscopyThomas P. K. Martinsson, Marc A. W. Verheijen, Kyle B. Westfall, Matthew A. Bershady, Andrew Schechtman-Rook, David R. Andersen and Rob A. SwatersA&A, 557 (2013) A130DOI: https://doi.org/10.1051/0004-6361/201220515