The tools for the searching and editing of lists of visual binaries (WDSTOLL) have been developed / and are being maintained and updated by David Chiron using data from WDS (Washington Double Stars catalogue).

Grateful thanks to :

• Brian D. Mason (U.N.S.O) who allows me to use data from the WDS.
• Réjane Boylen for translat WDSTOOL in english.
• Edgardo Ruben Masa Martin for translat WDSTOOL in spanich.