Sturzenegger, Johannes Jakob <br/><br/>
Unesteno :  Universala Esperanta stenografio / 
Johannes Jakob Sturzenegger, Heinrich Matzinger. 
 - Zürich :  Eldonejo Mondo,  1965. 
 - 285 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Linguistics and languages<br/>Esperanto