URBAN, O., JEHLIČKA, J., POKORNÝ, J., ROUZAUD, J. N. Influence of laminar flow on preorientation of coal tar pitch structural units: Raman microscopic study. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy. 2003, 59(-), 2331-2340. ISSN 1386-1425. E-ISSN 1873-3557.