1 files changed, 66 insertions, 3 deletions
diff --git a/bibliography.bib b/bibliography.bib
index 61c7013..ec8138a 100644
--- a/bibliography.bib
+++ b/bibliography.bib
@@ -1,3 +1,43 @@
+@article{DiracPaulAdrienMaurice1939a,
+  doi = {10.1017/s0305004100021162},
+  year  = {1939},
+  month = {jul},
+  publisher = {Cambridge University Press ({CUP})},
+  volume = {35},
+  number = {03},
+  pages = {416},
+  author = {P. A. M. Dirac},
+  title = {A new notation for quantum mechanics},
+  journal = {Mathematical Proceedings of the Cambridge Philosophical Society}
+}
+
+@article{BiggsJasonD2012a,
+  doi = {10.1098/rsta.2011.0219},
+  url = {https://doi.org/10.1098/rsta.2011.0219},
+  year  = {2012},
+  month = {jul},
+  publisher = {The Royal Society},
+  volume = {370},
+  number = {1972},
+  pages = {3709--3727},
+  author = {J. D. Biggs and J. A. Voll and S. Mukamel},
+  title = {Coherent nonlinear optical studies of elementary processes in biological complexes: diagrammatic techniques based on the wave function versus the density matrix},
+  journal = {Philosophical Transactions of the Royal Society A: Mathematical,  Physical and Engineering Sciences}
+}
+
+@article{WardJF1965a,
+  doi = {10.1103/revmodphys.37.1},
+  year  = {1965},
+  month = {jan},
+  publisher = {American Physical Society ({APS})},
+  volume = {37},
+  number = {1},
+  pages = {1--18},
+  author = {J. F. WARD},
+  title = {Calculation of Nonlinear Optical Susceptibilities Using Diagrammatic Perturbation Theory},
+  journal = {Reviews of Modern Physics}
+}
+
 @article{AartsmaThijsJ1976a,
   author =       {Aartsma, Thijs J and Wiersma, Douwe A},
   title =        {{Photon-echo relaxation in molecular mixed crystals}},
@@ -1064,6 +1104,18 @@ year = {1998}
   month =        {jun},
 }
 
+@article{MarxChristophA2008a,
+  doi = {10.1103/physreva.77.022110},
+  year  = {2008},
+  month = {feb},
+  publisher = {American Physical Society ({APS})},
+  volume = {77},
+  number = {2},
+  author = {Christoph A. Marx and Upendra Harbola and Shaul Mukamel},
+  title = {Nonlinear optical spectroscopy of single,  few,  and many molecules: Nonequilibrium Green's function {QED} approach},
+  journal = {Physical Review A}
+}
+
 @misc{Mayavi,
   note =         {Accessed: 2018-03-25},
   title =        {Mayavi: 3D scientific data visualization and plotting in Python},
@@ -1429,6 +1481,18 @@ year = {1998}
   month =        {mar},
 }
 
+@article{RoslyakOleksiy2009a,
+  doi = {10.1103/physreva.79.063827},
+  year  = {2009},
+  month = {jun},
+  publisher = {American Physical Society ({APS})},
+  volume = {79},
+  number = {6},
+  author = {Oleksiy Roslyak and Christoph A. Marx and Shaul Mukamel},
+  title = {Generalized Kramers-Heisenberg expressions for stimulated Raman scattering and two-photon absorption},
+  journal = {Physical Review A}
+}
+
 @article{SalcedoJR1978a,
   author =       {Salcedo, J R and Siegman, A E and Dlott, D D and Fayer, M D},
   title =        {{Dynamics of Energy Transport in Molecular Crystals: The Picosecond
@@ -1858,6 +1922,7 @@ year = {1998}
   month =        {nov},
 }
 
+
 @article{ZanniMartinT2001a,
   author =       {Zanni, Martin T and Asplund, Matthew C and Hochstrasser, Robin M},
   title =        {{Two-dimensional heterodyned and stimulated infrared photon echoes of
@@ -1884,7 +1949,6 @@ year = {1998}
   month =        {sep},
 }
 
-
 @article{ZhaoWei1999b,
   author =       {Zhao, Wei and Wright, John C.},
   title =        {{Spectral Simplification in Vibrational Spectroscopy Using Doubly Vibrationally
@@ -1933,5 +1997,4 @@ year = {1998}
   note =         {Accessed: 2018-03-27},
   title =        {PyQtGraph: Scientific Graphics and GUI Library for Python},
   url =          {http://pyqtgraph.org/},
-}
-
+}
+\ No newline at end of file