Zelinka, J., & Balan, J. (1973). Ribosomes and RNA metabolism: Proceedings of the first International symposium on ribosomes and ribonucleic acid metabolism, organized by the Biological institute, Slovak Academy of sciences, Bratislava, Czechoslovakia : held at Smolenice castle, June 18-22, 1973 (Prvé vydanie.). Bratislava: Vydavateľstvo Slovenskej akadémie vied.

Zelinka, Ján, and Jozef Balan. Ribosomes and RNA Metabolism: Proceedings of the First International Symposium On Ribosomes and Ribonucleic Acid Metabolism, Organized By the Biological Institute, Slovak Academy of Sciences, Bratislava, Czechoslovakia : Held At Smolenice Castle, June 18-22, 1973. Prvé vydanie. Bratislava: Vydavateľstvo Slovenskej akadémie vied, 1973.

Zelinka, Ján, and Jozef Balan. Ribosomes and RNA Metabolism: Proceedings of the First International Symposium On Ribosomes and Ribonucleic Acid Metabolism, Organized By the Biological Institute, Slovak Academy of Sciences, Bratislava, Czechoslovakia : Held At Smolenice Castle, June 18-22, 1973. Prvé vydanie. Bratislava: Vydavateľstvo Slovenskej akadémie vied, 1973.