Casimir forces in a plasma: possible connections to Yukawa potentials Barry W. Ninham, Mathias Boström, Clas Persson, Iver Brevik, Stefan Y. Buhmann and Bo E. Sernelius Eur. Phys. J. D, 68 10 (2014) 328 Published online: 28 October 2014 DOI: 10.1140/epjd/e2014-50484-8