The Productivity Query tool can be used to quickly query an extract of the ISBSG database. A quick demo on how this works can be found here: http://isbsg.org/2019/02/13/pdq-video-clip/.
Access to the tool is free for Nesma members. Go to the Member-section of the Nesma website to find the code for the check-out coupon that can be used when ordering at ISBSG.
Access costs are € 10,– per month for non-Nesma members.
For more information about this service, and for non-Nesma members, for ordering, please go to the ISBSG website.