1. A short history of SHELX;Acta Crystallogr.,2008
2. Poly[bis[1-ethyl-6-fluoro-4-oxo-7-(1-piperazinyl)-1,4-dihydro-1,8-naphthyridine-3-carboxylato]cobalt(II)] dihydrate;Acta Crystallogr.,2007
3. Crystal structure of poly(bis(1-ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-1,8-naphtyridine-3-carboxylato)zinc(II)) dihydrate;Z. Kristallogr. − NCS,2007
4. A short history of SHELX;Acta Crystallogr.,2008
5. Poly[bis[1-ethyl-6-fluoro-4-oxo-7-(1-piperazinyl)-1,4-dihydro-1,8-naphthyridine-3-carboxylato]cobalt(II)] dihydrate;Acta Crystallogr.,2007