LEADER 01113nam a22003015i 4500 001 991002215669707536 007 cr nn 008mamaa 008 121227s1986 gw | s |||| 0|eng d 020 $a9783540398189 035 $ab14139297-39ule_inst 040 $aBibl. Dip.le Aggr. Matematica e Fisica - Sez. Matematica$beng 082 04$a512$223 084 $aAMS 05A10 084 $aAMS 13J05 100 1 $aDur, Arne$055036 245 10$aMobius functions, incidence algebras and power series representations$h[e-book] /$cby Arne Dur 260 $aBerlin :$bSpringer,$c1986 300 $a1 online resource (xi, 134 p.) 440 0$aLecture Notes in Mathematics,$x0075-8434 ;$v1202 650 0$aMathematics 650 0$aAlgebra 773 0 $aSpringer eBooks 856 40$uhttp://dx.doi.org/10.1007/BFb0077472$zAn electronic book accessible through the World Wide Web 907 $a.b14139297$b03-03-22$c05-09-13 912 $a991002215669707536 996 $aMöbius functions, incidence algebras and power series representations$978565 997 $aUNISALENTO 998 $ale013$b05-09-13$cm$d@ $e-$feng$ggw $h0$i0