The establishment of the optimum illuminations [sic] conditions for general offices /
Ivanova, N. S.
Garston :  Building Research Station, 
1970.
Originally published as Obosnovanie optimalʹnykh urovnei osveshchennosti dlya pomeshchenii administrativnykh zdanii, in Svetotekhnika, 1970 (7), 7-9.