Valinhos 2.2 micron survey of the southern galactic plane. II. Near ir photometry iras identifications and nature of the sources - Epchtein, N; Le Bertre, T; Lépine, Jacques Raymond Daniel; Marques dos Santos, Paulo; Matsuura, Oscar Toshiaki; Picazzio, Enos (Astronomy and Astrophysics. Supplement Series, 1987)