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SOHO 6/GONG 98 Workshop on Structure and Dynamics of the Interior of the Sun and Sun-like Stars : 1-4 June 1998, Boston, Massachusetts, USA. pp.105-108, 1998. Noordwijk, The Netherlands. ESA Publications Division
Proceedings of the SOHO 10/GONG 2000 Workshop Helio- and Asteroseismology at the Dawn of the Millennium : 2-6 October 2000, Instituto de Astrofísica de Canarias, Santa Cruz de Tenerife, Tenerife, Spain. pp.577-582, 2001. Noordwijk, The Netherlands. ESA Publications Division