Article:Hep-th/9512016/unidentified-references

  

 P.~S. Aspinwall and D.~R. Morrison, {\em U-duality and integral structures},   Phys. Lett. B {\bf 355} (1995), 141--149.  

 S.~Cecotti, S.~Ferrara, and L.~Girardello, {\em Geometry of type {II}   superstrings and the moduli of superconformal field theories}, Int. J. Mod.   Phys. A {\bf 4} (1989), 2475--2529.  

 B.~de~Wit and A.~Van~Proeyen, {\em Hidden symmetries, special geometry and   quaternionic manifolds}, Int. J. Mod. Phys. D {\bf 3} (1994), 31--48.  

 A.~Strominger, {\em Massless black holes and conifolds in string theory}, Nucl.   Phys. B {\bf 451} (1995), 96--108.  

 P.~S. Aspinwall and C.~A. L{\"u}tken, {\em Quantum algebraic geometry of   superstring compactifications}, Nucl. Phys. B {\bf 355} (1991), 482--510.  

 D.~R. Morrison, {\em Mirror symmetry and rational curves on quintic threefolds:   A guide for mathematicians}, J. Amer. Math. Soc. {\bf 6} (1993), 223--247.  

 P.~Candelas, X.~de~la Ossa, A.~Font, S.~Katz, and D.~R. Morrison, {\em Mirror   symmetry for two parameter models {(I)}}, Nucl. Phys. B {\bf 416} (1994),   481--562.  


 E.~Witten, {\em Dyons of charge {$e\theta/2\pi$}}, Phys. Lett. B {\bf 86}   (1979), 283--287.  

 L.~J. Dixon, {\em Some world-sheet properties of superstring compactifications,   on orbifolds and otherwise}, Superstrings, Unified Theories, and Cosmology   1987 (G.~Furlan et~al., eds.), World Scientific, Singapore,   1988, pp.~67--126.  

 W.~Lerche, C.~Vafa, and N.~P. Warner, {\em Chiral rings in {$N{=}2$}   superconformal theories}, Nucl. Phys. B {\bf 324} (1989), 427--474.  

 P.~Candelas, M.~Lynker, and R.~Schimmrigk, {\em {C}alabi--{Y}au manifolds in   weighted {$\P_4$}}, Nucl. Phys. B {\bf 341} (1990), 383--402.  

 B.~R. Greene and M.~R. Plesser, {\em Duality in {C}alabi--{Y}au moduli space},   Nucl. Phys. B {\bf 338} (1990), 15--37.  

 M.~Dine, P.~Huet, and N.~Seiberg, {\em Large and small radius in string   theory}, Nucl. Phys. B {\bf 322} (1989), 301--316.  

 J.~Dai, R.~Leigh, and J.~Polchinski, {\em New connections between string   theories}, Mod. Phys. Lett. A {\bf 4} (1989), 2073--2083.  

 G.~Papadopoulos and P.~K. Townsend, {\em Compactification of {$D{=}11$}   supergravity on spaces of exceptional holonomy}, Phys. Lett. B {\bf 357}   (1995), 300--306.  

 D.~D. Joyce, {\em Compact {R}iemannian {$7$-man\-i\-folds} with holonomy   {$G_2$}: {I}, {II}}, J. Differential Geom., to appear.  


 K.~S. Narain, {\em New heterotic string theories in uncompactified dimensions   $<$ 10}, Phys. Lett. B {\bf 169} (1986), 41--46.  

 K.~S. Narain, M.~H. Samadi, and E.~Witten, {\em A note on the toroidal   compactification of heterotic string theory}, Nucl. Phys. B {\bf 279} (1987),   369--379.  

 N.~Seiberg, {\em Observations on the moduli space of superconformal field   theories}, Nucl. Phys. B {\bf 303} (1988), 286--304.  

 D.~D. Joyce, {\em Compact {R}iemannian {$8$-man\-i\-folds} with holonomy   {$\mathop{\rm Spin}(7)$}}, Invent. Math., to appear.  


 N.~Seiberg and E.~Witten, {\em Spin structures in string theory}, Nucl. Phys. B   {\bf 276} (1986), 272--290.  

 C.~Vafa, {\em Modular invariance and discrete torsion on orbifolds}, Nucl.   Phys. B {\bf 273} (1986), 592--606.  

 R.~Dijkgraaf and E.~Witten, {\em Topological gauge theories and group   cohomology}, Commun. Math. Phys. {\bf 129} (1990), 393--429.  

 P.~S. Aspinwall and D.~R. Morrison, {\em Chiral rings do not suffice:   {$N{=}(2,2)$} theories with nonzero fundamental group}, Phys. Lett. B {\bf   334} (1994), 79--86.  

 J.~Distler and B.~Greene, {\em Some exact results on the superpotential from   {C}alabi--{Y}au compactifications}, Nucl. Phys. B {\bf 309} (1988), 295--316.  

 P.~S. Aspinwall, B.~R. Greene, and D.~R. Morrison, {\em {C}alabi--{Y}au moduli   space, mirror manifolds and spacetime topology change in string theory},   Nucl. Phys. B {\bf 416} (1994), 414--480.  

 D.~R. Morrison, {\em Where is the large radius limit?}, Strings '93 (M.~B.   Halpern, G.~Rivlis, and A.~Sevrin, eds.), World Scientific, Singapore, 1995,   pp.~311--315.  

 P.~Griffiths, {\em Periods of integrals on algebraic manifolds, {I}, {II}},   Amer. J. Math. {\bf 90} (1968), 568--626, 805--865.  


 S.~Ferrara and S.~Sabharwal, {\em Quaternionic manifolds for type {II}   superstring vacua of {C}alabi--{Y}au spaces}, Nucl. Phys. B {\bf 332} (1990),   317--332.  

 B.~R. Greene, D.~R. Morrison, and A.~Strominger, {\em Black hole condensation   and the unification of string vacua}, Nucl. Phys. B {\bf 451} (1995),   109--120.  

 K.~Becker, M.~Becker, and A.~Strominger, {\em Fivebranes, membranes and   non-perturbative string theory}, Nucl. Phys. B {\bf 456} (1995), 130--152.  

 A.~Landman, {\em On the {P}icard-{L}efschetz transformations}, Trans. Amer.   Math. Soc. {\bf 181} (1973), 89--126.  

 W.~Schmid, {\em Variation of {H}odge structure: The singularities of the period   mapping}, Invent. Math. {\bf 22} (1973), 211--319.