Greenkeeperverband Deutschland: http://www.greenkeeperverband.de/

Swiss Greenkeeper Association: http://www.greenkeeper.ch/

Slovenia Greenkeepers Association: http://www.zvgis.si/

British and International Golf Greenkeepers Association: http://www.bigga.org.uk/

Golf Course Superintendents Association of America (GCSAA): http://www.gcsaa.org/

Scandinavian Environmental Turf Research Foundation: www.sterf.org

Sports Turf Research Institute: www.stri.co.uk

Golf Environment Organisation (GEO):  http://www.golfenvironment.org


Golf

Österreichischer Golfverband: www.golf.at

PGA of Austria: https://www.pgaofaustria.at/

European Golf Association (EGA): http://www.ega-golf.ch/

R & A: http://www.randa.org

Institute of European Golf Course Architects: www.eigca.org

European Tour: https://www.europeantour.com/

PGA Tour: https://www.pgatour.com/