00307nam a2200097Ia 4500008004100000082002000041100001500061245007400076260004600150300001300196250828b        |||||||| |||| 00| 0 eng d  a512.5bSe475.NN  aSeneta, E.  aNon-negative matricesb; an introduction to theory and applications /  aLondon:bGeorge Allen & Unwin Ltd.,c1973  ax, 214p.