mwb23.03 p. 2

mwb21.01 p. 14

nwt p. 1957

w11 9/15 p. 7-8

w10 12/15 p. 21-22

w02 5/1 p. 15 par. 6-7

w02 8/1 p. 10 par. 5-7

w92 11/1 p. 10-11

w04 8/1 p. 25 par. 1

w13 10/15 p. 21-25