of an alpabet of an alphanumeric I/O device

of a keyboard

of the KD works (with Ershov's notes)

about the alphabet for alphanumeric I/O devices

for 6-bit coding of alphanumeric information

informing that the description of alphanumeric input/output of Soviet computers can be obtained at the MSU

taken during KD design

of keyboard devices: KD-1 and KD-2

Technical specification of a KD for punching and typing character information(handwritten). The work had been continued in 1963

Technical specification of a KD for punching and typing character information.