That is reprinted directly out of Electronic Musician, I would guess that if you give them credit and list the publication date it would not really be an issue. It really is a great article, that month was Part 1 and had things for:
DX7, DX7II, DX7 E!, DX21/27, DX11, TX216/816, TX81z, TX802, TX7, FB01, RX15, RX11, RX21, RX5, RX7, QX3, QX7, QX5, QX21, Kawai K1, K3, K3m, K5, K5m, M8000, MK10/20, Q80, R50, R100, Korg M1, DSS1, and more, I think they did Part 2 of the article the following month or a couple of months later, I can probably go back through my back issues and find it. The other day I also ran across a copy of Yamaha Aftertouch magazine with the V80 FD on the cover, article has a couple of pictures and preliminary specs. That was the synth that was coming out after the DX7II series, was announced at NAMM and they had a prototype there, several months later it was quietly dropped from production plans and shortly after they announced the SY77.
DX7IIFD, SY77, SY99, Hammond C3, Steinway L, CP300, AW1600, etc.