Is volunteering always voluntary? Between compulsion and coercion in co-productionTõnurist, Piret; Surva, LaidiVoluntas : international journal of voluntary and nonprofit organizations2017 / p. 223-247 : ill http://dx.doi.org/10.1007/s11266-016-9734-z

Western misperception when deterring Russia : Cultural and linguistic factorsVeebel, Viljar; Vihmand, Liia; Ploom, Illimar; Markus, RaulJournal of politics and law2020 / p. 151-159 https://doi.org/10.5539/jpl.v13n3p151