1. Diesslin AR, Kauck EA (1951) Fluoro carbon acids and derivatives. US Patent no. 2567011
2. Kauck EA, Minn St.P, Simons JH (1952) Cyclic fluoro alkylene oxide compounds. US Patent no. 2594272
3. Kauck EA, Minn St.P, Simons JH (1953) Cyclic fluorocarbon ethers. US Patent no. 2644823 (1954) British Patent no. 718318
4. Ludwigshalle S A-G (1959) Method of producing organic cyclic Perfluoro ethers having 5 or 6-membered rings. German Patent no. 1069639 (1961) British Patent no. 862538
5. Abe T, Nagase S (1982) In: Banks RE (ed) Preparation properties and Industrial application of organofluorine compounds. Ellis Horwood, Chichester, pp 19–33