4, THE P
The q
compl
4,1 The v:
singl
impos
by ta
coord
4.2 The o
0.02 :
to ec
norma
e and
produ
4.3 What
and t
will
4.4 The a
compa
error
5. FREQU
Opini
5.1 Some
by re
tende
a rec
5.2 Conti
this
use p
shoul
tilts
Menti
only the
regardles
It ie
deformati
The c
a camera
and aceur
The 1
1972. J
list of ;
publishec
of 102 r«
l.