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Astron. Astrophys. 355, 227-235 (2000) AcknowledgementsLMS thanks PBB for giving him the chance to fulfill the dream of working in astronomy and the ever-lasting treasure of the memory of his friendship. In memoriam . Research at Armagh Observatory is supported by a Grant-in-Aid from the Department of Education of Northern Ireland. This research utilised software and hardware provided by the UK SERC STARLINK computing network. LMS acknowledges support from the European Community's COMMET grant. ![]() ![]() ![]() ![]() © European Southern Observatory (ESO) 2000 Online publication: March 17, 2000 ![]() |