Notes
* Bulgarian text © 1984 by the Publishing House of the Bulgarian Academy of Sciences. “Izsledvane vliianieto na nauchno-tekhnicheskiia progres v"rkhu ikonomicheskiia rastezh,” from Ikonomicheska misla, vol. 29 (1984), no. 8, pp. 35–43. Translated with permission. Translated by Michel Vale.