%0 Journal Article
%T South African toothpaste pot lids
%A Evans
%A L
%A Hagen
%A HF
%A Lastovica
%A E
%A Pynn
%A BR
%J Journal of Power and Energy Engineering 电力与能源
%D 2019
%R 10.17159/2519-0105/2019/v74no3a6
%U http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S0011-85162019000300009&lng=en&nrm=iso&tlng=en