Διατι´η´εναι και ισχυρωσ κανονικαι υπερο´αδεσ
By: Iōannou D. Mētta
Contributors: Ethnikon Metsovion Polytechneion (Greece)
Published: 1969
Language: gre
Number of pages: 87
Other titles: Diatimēmenai kai ischyrōs kanonikai yperomades; Hypergroupes valués et hypergroupes fortement canoniques.
Notes: Thesis (doctoral)--Ethnikon Metsovion Polytechneion (Greece), 1969.

In Hebrew; summary in French.