1. CIBS (IHVE) Guide Book A, 1970; Department of Environment Circular to Local Autorities in England, ref. BRA/668/68 (14 September 1976).
2. Calculation of the U-value of foam-filled hollow block walls;Stephens;Heat. Vent. Engr,1977
3. Thermal conductivity of masonry materials;Arnold;J. Inst. Heat. Vent. Engrs.,1969
4. Thermal conductivity of masonry materials;Arnold;J. Inst. Heat. Vent. Engrs.,1969
5. Determination of the thermal transmission factors of building fabric using interactive computer graphics;Burdett,1978