Dr. Kolker akadzidza Esperanto muna 1957 uye ndiye munyori wenyaya dzeinterlinguistics, ongororo dzebhuku uye mabhuku matatu akakurumbira eEsperanto evadzidzi vematanho akasiyana. Nekuda kwekuzivikanwa kukuru kwebhuku rake eo: Voyage en Esperanto-lando (Kufamba muEsperanto-Nyika), inova zvese kosi yekugona muEsperanto uye bhuku rinotungamira kuEsperanto tsika, anozivikanwa kune vazhinji segwara kuEsperanto-Nyika.Kolker inhengo yeAcademy of Esperanto, nhengo yekuremekedza yeWorld Esperanto Association (Universala Esperanto Asocio), uye mupepeti wepepanhau remwedzi nemwedzi Monato. Kwemakumi maviri emakore akatungamira kosi yakakura yekunyorerana yeEsperanto muRussia iyo yakapedza vadzidzi vanosvika mazana mapfumbamwe. Akadzidzisawo Esperanto kumayunivhesiti eAmerica muSan Francisco neHartford. Mubvunzo: Dr. Kolker akanongedzera kupi?
Russia