%0 Journal Article %A M. Z. Krzywoblocki %T On some mathematical aspects of an interplanetary flight (to Mars), Part IV. Particular and Conditions %J Δελτίο της Ελληνικής Μαθηματικής Εταιρίας %D 1963 %P 79-110 %V 04 %N A %U http://geodesic.mathdoc.fr/item/DEME_1963_04_A_a4/ %G gr %F DEME_1963_04_A_a4