Hesse, Rolf 1938-.
Syntax of the modern Greek verbal system: the use of the forms, particularly in combination with "tha" and "na" /
Rolf Hesse 
. - Copenhagen : Museum Tusculanum Press,  1980 
. - 132 p.  табл.  23 cm. 
 - (Opuscula Byzantina et Neograeca  ; v. 2 )