sponsors National Science Foundation ... [et al]. sponsors, National Science Foundation...[et al.]. sponsors, Electronic Engineering Association ... [et al.]. sponsored by International Dasalination Association ... [et al.]. sponsore d by International Dasalination Association ... [et al.]. sponsored by Communications Satellite Corporation ... [et al.]. sponsors Electronic Engineering Association ... [et al.] sponsors US National Bureau of Standards (NBS) ... [et al.] sponsored by Center National de la Recherche Scientifique ... [et al.]. sponsored by UCLA Extension ... [et al.].