Optimal networks joining n points in the plane
W. A. Horn · 1968
p-3 8 > p. 42, Add the following sentence to the end of the paragraph « preceding corollary 21: Its statement here uses the normalization \ + X) X. .=1 , ij mentioned previously. 1 p p 1 .2 : \ 1-X) should be i(l-X) .A. 13:Delete "according to the author."End sentence with a period.