Brown Dwarfs in the Pleiades Cluster. III. A deep IZ survey
  We present the results of a deep CCD-based IZ photometric survey of a ~1 sq. deg area in the central region of the Pleiades Galactic open cluster. The magnitude coverage of our survey (from I~17.5 down to 22) allows us to detect substellar candidates with masses between 0.075 and 0.03 Msol. Details of the photometric reduction and selection criteria are given. Finder charts prepared from the I-band images are provided. 
M.R. Zapatero Osorio, R. Rebolo, E.L. Martin, S.T. Hodgkin, M.R.   Cossburn, A. Magazzu, I.A. Steele, R.F. Jameson