text: gled out, with the high-temperature, paramagnetic phase 
  separated from the low-temperature, long-range ordered 
  one, by an intermediate-temperature block phase where 
  outer ordered 4-layers blocks coexist with some inner dis- 
  ordered ones. Moreover, it was observed that the phase 
  transition of such inner layers turns out to have the sig- 
  natures of a Kosterlitz-Thouless one. 
  
  The absence of the block phase in the J1 − J2 model 
  here investigated has to be attributed to the diﬀerent 
  range of interactions, rather than to the diﬀerent lattice 
  structure. We came to this conclusion by doing some 
  simulations using the same set of interaction constants 
  employed in Refs. 14,15, but using a BCT lattice: the 
  results we obtained for ∆ϕl with n = 12 are reported in 
  Fig. 9. The latter is absolutely similar to Fig.7 of Ref. 15 
  and clearly displays the footmarks of the block phase (see 
  down-triangle), with two external blocks of ordered layers 
  ( l =1. . . 5 and 8. . . 12 ), where ∆ϕl is roughly 10◦, sep- 
  arated by a block of disordered layers, and with almost 