improved documetation

docs/source/references.bib

@@ -567,6 +567,11 @@ @article{coasneMultiscaleAdsorptionTransport2016
   url = {https://pubs.rsc.org/en/content/articlelanding/2016/nj/c5nj03194j},
 }
 
+@online{CorrelationsNMRRelaxation,
+  title = {Correlations of {{NMR}} Relaxation Time with Viscosity/Temperature, Diffusion Coefficient and Gas/Oil Ratio of Methane-Hydrocarbon Mixtures},
+  url = {https://repository.rice.edu/items/3c174209-db4b-440e-9771-cab54461b998},
+}
+
 @article{coudertMolecularMechanismSwing2017,
   title = {Molecular {{Mechanism}} of {{Swing Effect}} in {{Zeolitic Imidazolate Framework ZIF}}‐8: {{Continuous Deformation}} upon {{Adsorption}}},
   shorttitle = {Molecular {{Mechanism}} of {{Swing Effect}} in {{Zeolitic Imidazolate Framework ZIF}}‐8},
@@ -1738,6 +1743,16 @@ @article{liuInterfacialLayerStructure2005
   url = {https://linkinghub.elsevier.com/retrieve/pii/S000926140500936X},
 }
 
+@thesis{loCorrelationsNMRRelaxation1999,
+  title = {Correlations of {{NMR Relaxation Time}} with {{Viscosity}}/{{Temperature}}, {{Diffusion Coefficient}} and {{Gas}}/{{Oil Ratio}} of {{Methane-Hydrocarbon Mixtures}}},
+  editora = {Lo, Sho-Wei},
+  editoratype = {collaborator},
+  year = {1999},
+  institution = {{Rice University}},
+  location = {{Houston}},
+  url = {https://hdl.handle.net/1911/19530},
+}
+
 @online{mackayCountoscopeMeasuringSelf2023,
   title = {The {{Countoscope}}: {{Measuring Self}} and {{Collective Dynamics}} without {{Trajectories}}},
   shorttitle = {The {{Countoscope}}},

docs/source/theory/best-practice.rst

@@ -103,14 +103,22 @@ Box size
 
 .. container:: justify
 
-    NMR relaxation measurements are sensitive to the box size, as small 
-    systems are known to suffer from finite-size effects.
+    NMR relaxation measurements are sensitive to the 
+    finite-size effects that can occur with small simulation boxes :cite:`grivetNMRRelaxationParameters2005`.
 
 .. container:: justify
 
     As an illustration, the NMR relaxation rate :math:`R_1`
-    was measured for water with different number of molecules :math:`N`,
-    with :math:`N \in [100,\,10000]`.
+    was measured for water with different number of molecules
+    :math:`N \in [100,\,10000]`, which correspond to equilibrium
+    box size of lateral sizes :math:`L \in [1.4,\,6.7]\,\text{nm}`.
+    Our results show that the inter-molecular
+    relaxation rate :math:`R_1^\text{inter}` is sensitive to the 
+    box size even for the largest boxes considered here. Note that 
+    :math:`R_1^\text{intra}`, which is the dominant contribution to 
+    :math:`R_1` for water at ambient temperature, is barely affected
+    by the box size and therefore the resulting error induced on :math:`R_1`
+    remains small in this case.
 
 .. image:: ../figures/illustrations/bulk-water/effect_L_on_R1-dark.png
     :class: only-dark
@@ -122,11 +130,11 @@ Box size
 
 .. container:: figurelegend
 
-    Figure: a) NMR relaxation rate :math:`R_1` as a function of the number of molecules :math:`N`
+    Figure: a) Inter-molecular NMR relaxation rate :math:`R_1^\text{inter}` as a function of the number of molecules :math:`N`
     for a bulk water system. For the smallest systems, results were averaged
     from up to 10 independent simulations and the error bar is calculated from
-    the standard deviation. b) Inter-molecular correlation function :math:`G`
-    for two different number of molecules.
+    the standard deviation. b) Inter-molecular correlation function :math:`G_\text{inter}`
+    for two different numbers of molecules.
 
 Dumping frequency
 -----------------