Webber, P., Cowley, A., Drew, M., & Beer, P. (2003). Potassium selective calix[4]semitubes.
Lua i Stíl Chicago (17ú heag.)Webber, P., A. Cowley, MG Drew, agus P. Beer. Potassium Selective Calix[4]semitubes. 2003.
Lua MLA (9ú heag.)Webber, P., et al. Potassium Selective Calix[4]semitubes. 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.