00286nam a2200121Ia 4500082002000000100002000020245002800040260003400068300001300102490003900115500000500154700000500159  a515.78bEs78.CT  aEssen, Matts R.  aCos pie lamda theoremb  aBerlinbSpringer-Verlagc1975  av, 111p.  aLecture notes in Mathematicsv 467  a  a