@inproceedings{1992-spencer
,note={URL: {\tt http://www.literateprogramming.com/ifdefs.pdf}}
,author={Henry Spencer and Geoff Collyer}
,crossref={1992--usenix-summer}
,pages={185--197}
,title={{\#ifdef considered harmful, or portability experience with C News}}
,year={1992}
}