Phase-integral treatment of physically important differential equations in polar angle and pseudo-polar angle coordinates : [dissertation]/
Inhalt Karte:605,540 EJEMALM JOHNNY Phase-integral treatment of physically important differential equations in polar angle and pseudo-polar angle coordinates : [dissertation]/ by Johnny Ejemalm ; Uppsala University. — Uppsala : Academiae Upsaliensis, 1987. - 9 s. ; 21 cm (Acta Universitatis Upsaliensis : Comprehersive Summaries of Uppsala Dissertations from the Faculty of Science, ISSN 0282-7468 ; 102) ISBN 91-554-2089-3