Nucleotides XXIV;1 Preparative Synthesis of Trimeric (2′-5′) Oligoadenylic Acid - Kyasyuk, Evgeny I; Kulak, Tamara I; Khripach, Natalya B; Mikhailopulo, Igor A; Uhlmann, Eugen; Charubala, Ramamurthy; Pfleiderer, Wolfgang (Synthesis, 1987)