 The name "Macedonian Slavs" (Македонски Словени) is another term used to refer to the ethnic Macedonians, though this term can be viewed as derogatory by ethnic Macedonians, including those in Greek Macedonia.A number of news agencies have used it, and it is used by the Encarta Encyclopaedia.The name has been occasionally used in early ethnic Macedonian literary sources as in Krste Misirkov's work "On Macedonian Matters" ("Za Makedonckite Raboti") in 1903.