The Astrophysical Journal, 623:252-268, 2005 April 10
          The Proto Planetary Nebula M1-92 and the Symbiotic Star MWC 560: Two Evolutionary Phases of the Same Type of Object?
Planetary Nebula M1-92 and the Symbiotic Star MWC 560: Two Evolutionary Phases of the Same Type of Object? 
          A. Arrieta,
          S. Torres-Peimbert  and L. Georgiev 
          http://iopscience.iop.org/0004-637X/623/1/252/58617.text.html#fg6
                  A&A 391, 617-623 (2002)
            MWC 560 : An SS 433 type object with a white dwarf
          T. Iijima
         1997BSAO...43...37P  
          Bull. Special Astrophys. Obs., 43, 37-54 (1997) 
           Spectral study of MWC 560. Parameters of the system, the hot source and   the jets.  
          PANFEROV A.A., FABRIKA S.N. and TOMOV T. 
         1994MmSAI..65..167T  
          Mem. Soc. Astron. Ital., 65, 167-170 (1994) 
           MCW 560 : an exotic interacting binary system.  
          TOMOV T., KOLEV D., MICHALITSIANOS A.G., MIKOLAJEWSKI M., SONNEBORN   S.N., MARAN S.P., OLIVERSEN R.J. and SONNEBORN G. 
         1994AJ....108..671S  
          Astron. J., 108, 671-677 (1994) 
           A model for the spectroscopic variations of the peculiar symbiotic star   MWC 560.  
          SHORE S.N., AUFDENBERG J.P. and MICHALITSIANOS A.G. 
         1993A&AS..100....1K  
          Astron. Astrophys., Suppl. Ser., 100, 1-24 (1993) 
           MWC 560: spectral atlas for the region 3600-4900 Angstroms.  
          KOLEV D. and TOMOV T. 
         1992MNRAS.258...23T  
          Mon. Not. R. Astron. Soc., 258, 23-35 (1992) 
           MWC 560 : jets or optically thick expanding envelope ?  
          TOMOV T., ZAMANOV R., KOLEV D., GEORGIEV L., ANTOV A., MIKOLAJEWSKI   M. and ESIPOV V.