Online of course, and open to the public. Go here:
http://adswww.harvard.edu
Enter "cosmic engineering" (including the quote marks) in the search field and you will come up with a few papers. The term itself is not so common however, and you can find many other papers along the lines
@Simonka mentions with other searches if you know what you are looking for (or are persistent). Note also that this is just the top level of the database (maintained at Harvard under contract to NASA btw). If you follow the links and learn the system you can find publications in the technical scientific literature on all sorts of topics, many more far out than those she mentioned.
-Ww