545.83 Bri A Brill,R Advances in structure research by diffration methods. Fortschritte der Stcrukturforschung mit beugungsmethoden,Edited by R, Brill with contributions of G. E Bacon [and others] New York Interscience Pub. [19644] t. ilus., diagrs. 24 cm Texto en ingles y alemán Incluye bibliografia