A tributary does not flow directly into a sea or ocean.
== Verzije ==* 8.8 cm FlaK 18* 8.8 cm FlaK 36* 8.8 cm FlaK 37* 8.8 cm FlaK 41* 8.8 cm Gerät 42* 8.8 cm PaK 43== Zunanje povezave ==* History of the 88 mm series of guns* US Military Intelligence document on the 88 mm gun* The New 88 and Its Carriages* Detailed examination of the effect of 88 mm FlaK on B-17 and B-24 bombers* Technical Manual German 88 mm Antiaircraft Gun Materiel - US War Department, 29 June 1943