BARHLEN, GABRIELE 300. 514 YEARS 30 Years Sleep Apnea Syndrome : German Congress of Pneumology, Freiburg, Germany, March 5-8, 1997 I guest eds. Gabriele Barhlen, Heinrich Matthys. - [Basel etc] : S. Karger Medical and Scientific. Publ., 1997. - 111,44 s. s il., wykr. ; 28 cm. -(Respiration, 0025-7931 ; vol.64, suppl.1)