1. Directive RoHS (Restriction of Hazardous Substances) of the European Community of 27.01.2003.
2. Directive WEEE (Waste Electrical and Electronics Equipment) of the European Community of 21.10.2000.
3. Directive ELV (End of Life Vehicles) of the European Community of 21.10.2000.
4. B. N. Perevezentsev and M. N. Kurmaev, “Lead-free solders based on tin,” in: Reports of Int. Scientif.-Eng. Conf. “Soldering- 2005” [in Russian], Tolyatti, Izd. Tolyatti Univ. (2005), pp. 116 – 120.
5. Li Ning-Cheng, The Technology of Fusion Soldering, Search and Removal of Faults: Surface Mounting [Russian translation], Tekhnologii, Moscow (2006).