The quasi-biennial periodicity (QBP) in velocity and intensity helioseismic observations - The seismic QBP over solar cycle 23R. Simoniello, W. Finsterle, D. Salabert, R. A. García, S. Turck-Chièze, A. Jiménez and M. RothA&A, 539 (2012) A135DOI: https://doi.org/10.1051/0004-6361/201118057
