Estonia : report 2016 - study question (patents)Kartus, Raul; Kukrus, AntsAIPPI yearbook 2016/ IV : 2016 AIPPI World Congress - Milan, September 16, 2016  - September 20, 2016 : Added Matter : The Standard for Determing Adequate Support for Amendments : working guidlines, group reports, resolutions2017 / p. 74-78 http://aippi.org/wp-content/uploads/2017/12/2016_Yearbook_41.pdf