%0 Journal Article
%T Transportation and combination
%J Science
%D 1906
%A Knapp, M. A.
%V 23
%N 579
%P 178-184
%X <p>[Abstract unavailable]</p> <p>Language: en</p>
%G en
%I American Association for the Advancement of Science
%@ 0036-8075
%U http://dx.doi.org/10.1126/science.23.579.178