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D. Seargent, pp. 146-151, 2008. (EN) David Seargent, Comet C/1927 X1 (Skjellerup-Maristany), in The Greatest Comets in History: Broom Stars and Celestial Scimitars, Springer Science & Business Media, 2008, pp. 146-151, DOI:10.1007/978-0-387-09513-4, ISBN9780387095134.
D. Seargent, pp. 146-147, 2008. (EN) David Seargent, Comet C/1927 X1 (Skjellerup-Maristany), in The Greatest Comets in History: Broom Stars and Celestial Scimitars, Springer Science & Business Media, 2008, pp. 146-151, DOI:10.1007/978-0-387-09513-4, ISBN9780387095134.
D. Seargent, p. 147, 2008. (EN) David Seargent, Comet C/1927 X1 (Skjellerup-Maristany), in The Greatest Comets in History: Broom Stars and Celestial Scimitars, Springer Science & Business Media, 2008, pp. 146-151, DOI:10.1007/978-0-387-09513-4, ISBN9780387095134.
D. Seargent, p. 148, 2008. (EN) David Seargent, Comet C/1927 X1 (Skjellerup-Maristany), in The Greatest Comets in History: Broom Stars and Celestial Scimitars, Springer Science & Business Media, 2008, pp. 146-151, DOI:10.1007/978-0-387-09513-4, ISBN9780387095134.
D. Seargent, p. 149, 2008. (EN) David Seargent, Comet C/1927 X1 (Skjellerup-Maristany), in The Greatest Comets in History: Broom Stars and Celestial Scimitars, Springer Science & Business Media, 2008, pp. 146-151, DOI:10.1007/978-0-387-09513-4, ISBN9780387095134.
D. Seargent, pp. 148-149, 2008. (EN) David Seargent, Comet C/1927 X1 (Skjellerup-Maristany), in The Greatest Comets in History: Broom Stars and Celestial Scimitars, Springer Science & Business Media, 2008, pp. 146-151, DOI:10.1007/978-0-387-09513-4, ISBN9780387095134.
D. Seargent, pp. 149-150, 2008. (EN) David Seargent, Comet C/1927 X1 (Skjellerup-Maristany), in The Greatest Comets in History: Broom Stars and Celestial Scimitars, Springer Science & Business Media, 2008, pp. 146-151, DOI:10.1007/978-0-387-09513-4, ISBN9780387095134.
D. Seargent, p. 150, 2008. (EN) David Seargent, Comet C/1927 X1 (Skjellerup-Maristany), in The Greatest Comets in History: Broom Stars and Celestial Scimitars, Springer Science & Business Media, 2008, pp. 146-151, DOI:10.1007/978-0-387-09513-4, ISBN9780387095134.
D. Seargent, pp. 150-151, 2008. (EN) David Seargent, Comet C/1927 X1 (Skjellerup-Maristany), in The Greatest Comets in History: Broom Stars and Celestial Scimitars, Springer Science & Business Media, 2008, pp. 146-151, DOI:10.1007/978-0-387-09513-4, ISBN9780387095134.