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Microcensus sample surveys
Schubnell, Hermann, (1969)
Methodology of demographic sample surveys : report
(1971)
Izpolzvane na reprezentativnija metod i izgodata ot prilożenieto mu pri prebrojavaneto na naselenieto
Atanasov, Atanas, (1964)
On the construction and maintenance of a central register for business surveys
Sunter, A. B., (1972)
El problema del caracter confidencial de la información estadística
Fellegi, I. P., (1970)
Response variance and its estimation
Fellegi, I. P., (1964)