TY - JOUR A1 - Shapoval, A. A1 - Le Mouël, J. L. A1 - Shnirman, M. A1 - Courtillot, V. T1 - Can irregularities of solar proxies help understand quasi-biennial solar variations? JO - Nonlin. Processes Geophys. J1 - NPG VL - 21 IS - 4 SP - 797 EP - 813 Y1 - 2014/08/01 PB - Copernicus Publications SN - 1607-7946 UR - https://npg.copernicus.org/articles/21/797/2014/ L1 - https://npg.copernicus.org/articles/21/797/2014/npg-21-797-2014.pdf DO - 10.5194/npg-21-797-2014 ER -