Katherine M. Switala-Elmhurst, Ph.D. Candidate, LEED AP and
Philip D. Udo-Inyang, Ph.D. [http://ascpro.ascweb.org/chair/paper/CPRT207002014.pdf Life Cycle Assessment of Residential Windows: Saving
Energy with Window Restoration] (англ.) // 50th ASC Annual International Conference Proceedings. — 2014. Архивировано 15 декабря 2017 года.
Katherine M. Switala-Elmhurst, Ph.D. Candidate, LEED AP and
Philip D. Udo-Inyang, Ph.D. [http://ascpro.ascweb.org/chair/paper/CPRT207002014.pdf Life Cycle Assessment of Residential Windows: Saving
Energy with Window Restoration] (англ.) // 50th ASC Annual International Conference Proceedings. — 2014. Архивировано 15 декабря 2017 года.