Volume 66, No. 4 (2009)
Portugaliae Mathematica
pp. 413–426 Series of reciprocal products with factors from linear recurrence sequencesPeter Bundschuh
pp. 427–512 The geometry of 2-calibrated manifoldsDavid Martínez Torres
pp. 513–533 An oscillation criterion for linear difference equations with general delay argumentG. E. ChatzarakisCh. G. PhilosI. P. Stavroulakis
pp. 535–541 The best constant for an almost critical Sobolev imbeddingAlain Haraux