38 

    39 @incollection {MR2061854,

    40     AUTHOR = {McClure, James E. and Smith, Jeffrey H.},

    41      TITLE = {Operads and cosimplicial objects: an introduction},

    42  BOOKTITLE = {Axiomatic, enriched and motivic homotopy theory},

    43     SERIES = {NATO Sci. Ser. II Math. Phys. Chem.},

    44     VOLUME = {131},

    45      PAGES = {133--171},

    46  PUBLISHER = {Kluwer Acad. Publ.},

    47    ADDRESS = {Dordrecht},

    48       YEAR = {2004},

    49    MRCLASS = {55P48 (18D50)},

    50   MRNUMBER = {MR2061854 (2005b:55018)},

    51 MRREVIEWER = {David Chataur},

    52       note = {\mathscinet{MR2061854} \arxiv{math.QA/0402117}},

    53 }

    54 

    55 @book {MR0420610,

    56     AUTHOR = {May, J. P.},

    57      TITLE = {The geometry of iterated loop spaces},

    58  PUBLISHER = {Springer-Verlag},

    59    ADDRESS = {Berlin},

    60       YEAR = {1972},

    61      PAGES = {viii+175},

    62    MRCLASS = {55D35},

    63   MRNUMBER = {MR0420610 (54 \#8623b)},

    64 MRREVIEWER = {J. Stasheff},

    65       note = {Lectures Notes in Mathematics, Vol. 271 \mathscinet{MR0420610} \href{http://www.math.uchicago.edu/~may/BOOKS/gils.pdf}{available online}},

    66 }

    67 

    68 @article {MR0236922,

    69     AUTHOR = {Boardman, J. M. and Vogt, R. M.},

    70      TITLE = {Homotopy-everything {$H$}-spaces},

    71    JOURNAL = {Bull. Amer. Math. Soc.},

    72   FJOURNAL = {Bulletin of the American Mathematical Society},

    73     VOLUME = {74},

    74       YEAR = {1968},

    75      PAGES = {1117--1122},

    76       ISSN = {0002-9904},

    77    MRCLASS = {55.42},

    78   MRNUMBER = {MR0236922 (38 \#5215)},

    79 MRREVIEWER = {R. J. Milgram},

    80       note = {\mathscinet{MR0236922} \doi{10.1090/S0002-9904-1968-12070-1}},

    81 }

    82 

    83 @book {MR0420609,

    84     AUTHOR = {Boardman, J. M. and Vogt, R. M.},

    85      TITLE = {Homotopy invariant algebraic structures on topological spaces},

    86     SERIES = {Lecture Notes in Mathematics, Vol. 347},

    87  PUBLISHER = {Springer-Verlag},

    88    ADDRESS = {Berlin},

    89       YEAR = {1973},

    90      PAGES = {x+257},

    91    MRCLASS = {55D35},

    92   MRNUMBER = {MR0420609 (54 \#8623a)},

    93 MRREVIEWER = {J. Stasheff},

    94       note = {\mathscinet{MR0420609}},

    95 }

    96 

    97 %The framed little discs operad:

    98 @article {MR1256989,

    99     AUTHOR = {Getzler, E.},

   100      TITLE = {Batalin-{V}ilkovisky algebras and two-dimensional topological

   101               field theories},

   102    JOURNAL = {Comm. Math. Phys.},

   103   FJOURNAL = {Communications in Mathematical Physics},

   104     VOLUME = {159},

   105       YEAR = {1994},

   106     NUMBER = {2},

   107      PAGES = {265--285},

   108       ISSN = {0010-3616},

   109      CODEN = {CMPHAY},

   110    MRCLASS = {81T70 (17B81 55Q99 58Z05 81T40)},

   111   MRNUMBER = {MR1256989 (95h:81099)},

   112 MRREVIEWER = {J. Stasheff},

   113       note = {\mathscinet{MR1256989} \euclid{1104254599}},

   114 }

   115 

   116