▁and ▁the ▁Leb es gue ▁limit ▁the or ems , ▁The ▁Greek ▁Mathemat ical ▁Society ▁C . ▁Car ath é od ory ▁Sym pos ium , ▁ 1 9 7 3 , ▁ 2 2 3 - 2 4 1 , ▁( pub lished ▁ 1 9 7 4 ). ▁Integr ation , ▁variation ▁and ▁different iation ▁in ▁division ▁spaces , ▁Pro ceed ings ▁of ▁the ▁Royal ▁Irish ▁Academy , ▁Series ▁A ▁( 1 0 ) ▁ 7 8 ▁( 1 9 7 8 ) ▁ 6 9 - 8 5 . ▁The ▁variation ▁on ▁the ▁real ▁line , ▁Pro ceed ings ▁of ▁the ▁Royal ▁Irish ▁Academy , ▁Series ▁A ▁( 1 ) ▁ 7 9 ▁( 1 9 7 9 ) ▁ 1 - 1 0 . ▁General ized ▁Riemann ▁integration ▁and ▁an ▁intr insic ▁topology , ▁Canadian ▁Journal ▁of ▁Mathemat ics ▁ 3 2 ▁( 1 9 8 0 ) ▁ 3 9 5 - 4 1 3 . ▁Division ▁spaces , ▁vector - valu ed ▁functions ▁and ▁backwards ▁mart ing ales , ▁Pro ceed ings ▁of ▁the ▁Royal ▁Irish ▁Academy , ▁Series ▁A ▁( 2 ) ▁ 8 0 ▁( 1 9 8 0 ) ▁ 2 1 7 - 2 3 2 . ▁D ens ity ▁integration ▁and ▁Wal sh ▁functions , ▁Bul letin ▁of ▁the ▁Malays ian ▁Mathemat ical ▁Society ▁( 2 ) ▁ 5 ▁( 1 9 8 2 ) ▁ 1 - 1 9 . ▁A ▁problem ▁in ▁two - dimensional ▁integration , ▁Journal ▁of ▁the