TY - CPAPER AU - Richard Sovjak AU - E. Fridrichova TI - ALTERNATION OF AN EXISTING PRODUCT USING ENVIRONMENTALLY FRIENDLY MATERIALS T2 - 5th International Multidisciplinary Scientific Conference on Social Sciences and Arts SGEM 2018 PY - 2018 SP - 35 EP - 42 DO - 10.5593/sgemsocial2018/5.3/S21.005 PB - STEF92 Technology ER -