1. Abushady, A Z (1919). Drawings to Specification. Bee-keepers' appliances. A comb foundation including no wax in its construction is formed of metal, on the surface of which the cell bases, of hexagonal, square, circular, or other form, are embossed or impressed as ridges or grooves. The foundation may be mounted in frames having a groove for the edge of the foundation, and having one side removably attached by screws. Patent Number 150,549. Specification 8096/93 is referred to. According to the Provisional Specification, any suitable materials may be employed in addition to metals. http://patent.ipexl.com/GB/150549a.html#citation. Accessed: May 8, 2014.
2. Blair, D (2014) biography at V2_Artist Collective, http://v2.nl/archive/people/david-blair. Accessed: May 6, 2014.