Peral, I., Madariaga, G., Petříček, V., Breczewski, T. Average structure of the composite crystal urea/octanedioic acid at room temperature within the superspace formalism. Acta Crystallographica Section B-Structural Science. 2001, 57(-), 386-393. ISSN 0108-7681. E-ISSN 2052-5206.