المؤلفون: Cucchiabo, A., Jamar, C., Macau-Hercot, D .

المصدر: Sāo Paulo, S.P., Brazil - June 1974 ; page 657-662

الاتاحة: http://dx.doi.org/10.1515/9783112482124-089
https://www.degruyter.com/document/doi/10.1515/9783112482124-089/xml
https://www.degruyter.com/document/doi/10.1515/9783112482124-089/pdf