http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Phương pháp toán tử FK cho bài toán phi nhiễu loạn
Vật lý toán học; Toán nguyên tử; Phương pháp toán tử; Từ trường; Tốc độ hội tụ