TY  - GEN
AU  - Whybray, Mike
TI  - Visual telecommunication for deaf people at 14.4 kbit/s on the public switched telephone network
KW  - Depósito de Retaguarda
KW  - 0220 - Depósito de Retaguarda
UR  - https://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/dr.htm
ER  -