KC4MT: A High-Quality Corpus for Multilingual Machine Translation. - Vinh Van Nguyen; Ha Nguyen; Huong Thanh Le; Thai Phuong Nguyen; Tan Van Bui; Luan-Nghia Pham; Anh Tuan Phan; Cong Hoang-Minh Nguyen; Viet-Hong Tran; Anh Huu Tran (LREC, 2022)