22nd World Orchid Conference, Guayaquil, Ecuador, 8-12 November 2017 : conference proceedings /

Publicado 2019

Actes du 18e Congrès Mondial et Exposition d'orchidées, 11-20 mars 2005 = Proceedings of the 18th World Orchid Conference, March 11-20, 2005 : Dijon - Fance /

Publicado 2005

Proceedings of the Third World Orchid Conference, held in London, May 30-June 22, 1960 /.

Publicado 1960

Proceedings of the Fifth World Orchid Conference /

Publicado 1966

Proceedings of the Eleventh World Orchid Conference : March 1984, Miami, Florida, U.S.A. /

Publicado 1985

Proceedings of the 16th World Orchid Conference : april 1999 /

Publicado 2002

Proceedings of the 6th World Orchid Conference /

Publicado 1971

Proceedings of the 9th World Orchid Conference /

Publicado 1980

Proceedings of the Fourth World Orchid Conference.

Publicado 1963

Erinnerungsbroschüre = Memory booklet /

por Senghas, Karlheinz 1928-2004
Publicado 1975

Proceedings of the 10th World Orchid Conference : 11-17 September 1981, Durban, South Africa /

Publicado 1982

Tagungsbericht der 8. Welt-Orchideen-Konferenz Palmengarten Frankfurt 10. - 17. April 1975 /

Publicado 1976

Proceedings of the 14th World Orchid Conference.

Publicado 1994

Proceedings of the 15th World Orchid Conference, Río de Janeiro 1996.

Publicado 1998

Proceedings of the 12th World Orchid Conference 1987 /

Publicado 1987

Proceedings of the 17th World Orchid Conference "sustaining orchids for the future" 2002 /

Publicado 2005

Conference proceedings, where new and old world orchids meet : 20th World Orchid Conference, 13-20 November 2011 /

Publicado 2013