1. Nuclear Electric. R6-CODE: software for assessing the integrity of structures containing defects. London, UK, 1993.
2. BSI PD6493/91. Guidance on some methods for assessing the acceptability of flaws in fusion welded structures. British Standards Intitution, London, 1991.
3. API Recommended Practice 579. Fitness for service. 1st ed. American Petroleum Institute, 2000.
4. Norma para Ia construcción y ensayo de microgarrafas, garrafas y cilindros para gases de petróleo licuados. Gas del Estado, Argentina, 1981.
5. Cilindros de acero para gases licuados de petróleo. Gas del Estado, Espec. 79-004-02, 1973.