The effect of the tensor force on the bubble structure in Ar isotopes Y. Z. Wang, J. Z. Gu, Z. Y. Li, G. L. Yu and Z. Y. Hou Eur. Phys. J. A, 49 1 (2013) 15 Published online: 25 January 2013 DOI: 10.1140/epja/i2013-13015-x