Original: Note : This list is limited to linguists who have worked specifically on the Altaic problem since the publication of the first volume of Ramstedt 's EinfÃ 1\/4 hrung in 1952 .
Simplified: However , since the publication of Gustaf John Ramstedt 's EinfÃ 1\/4 hrung in 1952 â '' 1957 , most Altaicists have included Korean in Altaic .