C .. ▁ ▁References ▁ ▁External ▁links ▁ ▁Vo et bal ▁International ▁profile ▁▁ ▁Category : 1 9 8 5 ▁birth s ▁Category : L iving ▁people ▁Category : D utch ▁football ers ▁Category : Associ ation ▁football ▁mid field ers ▁Category : E er ste ▁Div isie ▁players ▁Category : D erde ▁Div isie ▁players ▁Category : A ch illes ▁' 2 9 ▁players ▁Category : Pe ople ▁from ▁Gel der land ▁Category : De ▁Tre ff ers ▁players <0x0A> </s> ▁Ar istol och ia ▁lab i ata , ▁the ▁m ott led ▁Dutch man ' s ▁pipe ▁or ▁ro oster ▁flower , ▁is ▁an ▁orn amental ▁plant ▁which ▁is ▁native ▁to ▁Brazil . ▁ ▁References ▁ ▁External ▁links ▁ ▁lab i ata ▁Category : Fl ora ▁of ▁Brazil <0x0A> </s> ▁Heinrich ▁Frei herr ▁von ▁Stack el berg ▁( Oct ober ▁ 3 1 , ▁ 1 9 0 5 ▁– ▁October ▁ 1 2 , ▁ 1 9 4 6 ) ▁was ▁a ▁German ▁econom ist ▁who ▁contributed ▁to ▁game ▁theory ▁and ▁industrial ▁organization ▁and ▁is ▁known ▁for ▁the ▁Stack el berg ▁leadership ▁model . ▁ ▁Biography ▁ ▁Stack el berg ▁was ▁born ▁in ▁Moscow ▁into ▁a ▁Balt ic ▁German ▁family ▁of ▁nob ility ▁from ▁present - day ▁Est onia . ▁His ▁mother ▁was ▁an ▁Argent in ian ▁of ▁Spanish ▁descent . ▁After ▁the ▁October ▁Revolution ▁the ▁family ▁fled ▁to ▁Germany , ▁first ▁to ▁Rat ib or ▁and ▁later ▁to ▁C ologne . ▁He ▁studied ▁econom ics ▁and ▁mathematics ▁at ▁the