Your search - technologies perfect information age 2.1 downward communication 23.5 _ development 1 africa.* - did not match any resources.

Perhaps you should try some spelling variations:
downward communication » towards communication, aware communication, hazard communication
technologies perfect » technologies affect, technologies project, technologies series
perfect information » imperfect information, market information, personal information
communication 23.5 » communication 23.3, communication 24.5, communication 2.3.3
information age » information storage, information access, information about
2.1 downward » 2.5 downward, 5.4 downward, 14.7 downward
age 2.1 » age 4.1

You may be able to get more results by adjusting your search query.