citation info

README.md

@@ -7,7 +7,7 @@
 
 **Meep** is a free and open-source software package for simulating electromagnetic systems via the [finite-difference time-domain](https://en.wikipedia.org/wiki/Finite-difference_time-domain_method) (FDTD) method. Meep is an acronym for *MIT Electromagnetic Equation Propagation*.
 
-**Features**
+## Features
 
 -   **Free and open-source software** under the [GNU GPL](https://en.wikipedia.org/wiki/GNU_General_Public_License).
 -   Complete **scriptability** via [Python](https://meep.readthedocs.io/en/latest/Python_Tutorials/Basics/), [Scheme](https://meep.readthedocs.io/en/latest/Scheme_Tutorials/Basics), or [C++](https://meep.readthedocs.io/en/master/C++_Tutorial/) APIs.
@@ -25,7 +25,14 @@
 -   **Materials library** containing predefined broadband, complex refractive indices.
 -   Field analyses including [Poynting flux](https://meep.readthedocs.io/en/latest/Python_Tutorials/Basics/#transmittance-spectrum-of-a-waveguide-bend), [mode decomposition](https://meep.readthedocs.io/en/latest/Python_Tutorials/Mode_Decomposition/), [near to far transformations](https://meep.readthedocs.io/en/latest/Python_Tutorials/Near_to_Far_Field_Spectra/), [frequency extraction](https://meep.readthedocs.io/en/latest/Python_Tutorials/Basics/#modes-of-a-ring-resonator), [local density of states](https://meep.readthedocs.io/en/latest/Python_Tutorials/Local_Density_of_States/) (LDOS), [modal volume](https://meep.readthedocs.io/en/latest/Python_User_Interface/#field-computations), [Maxwell stress tensor](https://meep.readthedocs.io/en/latest/Python_Tutorials/Optical_Forces/), [arbitrary functions](https://meep.readthedocs.io/en/latest/Field_Functions/); completely programmable.
 
-# Documentation
+## Citing Meep
+
+We kindly request that you cite the following paper in any published work for which you used Meep:
+
+- A.F. Oskooi, D. Roundy, M. Ibanescu, P. Bermel, J.D. Joannopoulos, and S.G. Johnson, [MEEP: A flexible free-software package for electromagnetic simulations by the FDTD method](http://dx.doi.org/doi:10.1016/j.cpc.2009.11.008), Computer Physics Communications, Vol. 181, pp. 687-702, 2010 ([pdf](http://ab-initio.mit.edu/~oskooi/papers/Oskooi10.pdf)).
+
+
+## Documentation
 
 See the [manual on readthedocs](https://meep.readthedocs.io/en/latest) for the latest documentation.