are these two the same paper? any reason for difference in titles? source1: (citeseer)
@misc{ pike90plan, author = "R. Pike and D. Presotto and K. Thompson and H. Trickey", title = "Plan 9 from Bell Labs", text = "R. Pike, D. Presotto, K. Thompson & H. Trickey (1990) Plan 9 from Bell Labs, Proc. of the Summer 1990 UKUUG Conf., London, July 1990, pp. 1-9.", year = "1990", url = "citeseer.comp.nus.edu.sg/article/pike90plan.html" } source 2: (http://www.math.utah.edu/pub/tex/bib/plan9.html) @InProceedings{Pike:1990:PBLb, author = "R. Pike and D. Presotto and K. Thompson and H. Trickey", booktitle = "UKUUG. UNIX - The Legend Evolves. Proceedings of the Summer 1990 UKUUG Conference", title = "{Plan 9} from {Bell Labs}", publisher = pub-UKUUG, address = pub-UKUUG:adr, pages = "1--9 (of xi + 260)", year = "1990", ISBN = "0-9513181-7-9", LCCN = "????", bibdate = "Sat Mar 22 15:10:17 MST 1997", note = "See also \cite{Jacob:1996:AMD}.", acknowledgement = ack-nhfb, classcodes = "B6210L (Computer communications); C6150J (Operating systems); C5630 (Networking equipment); C5620 (Computer networks and techniques)", conflocation = "London, UK; 9-13 July 1990", corpsource = "AT&T Bell Lab., Murray Hill, NJ, USA", keywords = "building blocks; CPU servers; distributed computing environment; distributed processing; distributed systems; file; file servers; file-oriented protocol; interconnections; local name space; multiprocessing; operations; Plan 9; programs; protocols; security; servers; specialised components; terminals", treatment = "P Practical", }