In radio astronomy, the unit flik was coined by a group at Lockheed in Palo Alto, California as a substitute for the SI derived unit W cm−2 sr−1 µm−1, or watts divided by centimeters squared, steradians, and micrometers.
Flik 14, later Flik 14J (in Hungarian 14. repülőszázad or 14. vadászszázad) was an air company of the Imperial and Royal Aviation Troops.
As a result, Stojsavljevic was attached to Flik 34, which operated the Hansa-Brandenburg D.I fighter.