Concept and economic evaluation of an industrial synthesis of ε-caprolactam via solar photooximation of cyclohexane C. Sattler, F.-J. Müller, K.-J. Riffelmann, J. Ortner et K.-H. Funken J. Phys. IV France, 09 PR3 (1999) Pr3-723-Pr3-727 DOI: 10.1051/jp4:19993115