@book{3400,
	author = {Σαββαίδης, Παρασκευάς     and Δούκας, Ιωάννης},
	title = {Γεωδαισία Ι /},
	publisher = {Εκδόσεις Κυριακίδη,},
	year = {2017},
	address = {Θεσσαλονίκη :}
}