Good day. Finished invariance introduction paragraph. Added more sources.

cite.bib

@@ -7,6 +7,17 @@
   year={2001},
 }# Cited
 
+@article{barbour2011intensity,
+  title={Intensity-invariant coding in the auditory system},
+  author={Barbour, Dennis L},
+  journal={Neuroscience \& Biobehavioral Reviews},
+  volume={35},
+  number={10},
+  pages={2064--2072},
+  year={2011},
+  publisher={Elsevier}
+}# Cited
+
 @article{bauer1987separate,
   title={Separate localization of sound recognizing and sound producing neural mechanisms in a grasshopper},
   author={Bauer, Maria and von Helversen, Otto},
@@ -22,7 +33,19 @@
   volume={24},
   pages={113--136},
   year={2008},
-}
+}# Cited
+
+@article{benda2021neural,
+  title={Neural adaptation},
+  author={Benda, Jan},
+  journal={Current Biology},
+  volume={31},
+  number={3},
+  pages={R110--R116},
+  year={2021},
+  publisher={Elsevier}
+}# Cited
+
 @article{bhavsar2017brain,
   title={Brain regions for sound processing and song release in a small grasshopper},
   author={Bhavsar, Mit Balvantray and Stumpner, Andreas and Heinrich, Ralf},
@@ -95,7 +118,8 @@
   volume={22},
   pages={1493--1510},
   year={2010},
-}
+}# Cited
+
 @article{creutzig2009timescale,
   title={Timescale-invariant representation of acoustic communication signals by a bursting neuron},
   author={Creutzig, Felix and Wohlgemuth, Sandra and Stumpner, Andreas and Benda, Jan and Ronacher, Bernhard and Herz, Andreas VM},
@@ -103,7 +127,8 @@
   volume={29},
   pages={2575--2580},
   year={2009},
-}
+}# Cited
+
 @article{eberhard2015temperature,
   title={A temperature rise reduces trial-to-trial variability of locust auditory neuron responses},
   author={Eberhard, Monika JB and Schleimer, Jan-Hendrik and Schreiber, Susanne and Ronacher, Bernhard},
@@ -125,6 +150,27 @@
   publisher={Springer}
 }# Cited
 
+@article{einhaupl2011attractiveness,
+  title={Attractiveness of grasshopper songs correlates with their robustness against noise},
+  author={Einh{\"a}upl, Anne and Stange, Nicole and Hennig, R Matthias and Ronacher, Bernhard},
+  journal={Behavioral Ecology},
+  volume={22},
+  number={4},
+  pages={791--799},
+  year={2011},
+  publisher={Oxford University Press}
+}
+@article{elsner1968neuromuskularen,
+  title={Die neuromuskul{\"a}ren Grundlagen des Werbeverhaltens der roten Keulenheuschrecke Gomphocerippus rufus (L.)},
+  author={Elsner, Norbert},
+  journal={Zeitschrift f{\"u}r vergleichende Physiologie},
+  volume={60},
+  number={3},
+  pages={308--350},
+  year={1968},
+  publisher={Springer}
+}# Cited
+
 @article{fisch2012channel,
   title={Channel noise from both slow adaptation currents and fast currents is required to explain spike-response variability in a sensory neuron},
   author={Fisch, Karin and Schwalger, Tilo and Lindner, Benjamin and Herz, Andreas VM and Benda, Jan},
@@ -132,7 +178,7 @@
   volume={32},
   pages={17332--17344},
   year={2012},
-}# Cited
+}
 
 @article{gollisch2002energy,
   title={Energy integration describes sound-intensity coding in an insect auditory system},
@@ -234,6 +280,16 @@
   year={2004},
 }# Cited
 
+@article{hennig2004processing,
+  title={Processing of auditory information in insects},
+  author={Hennig, RM and Franz, A and Stumpner, A},
+  journal={Microscopy research and technique},
+  volume={63},
+  number={6},
+  pages={351--374},
+  year={2004},
+  publisher={Wiley Online Library}
+}
 @article{hennig2014time,
   title={Time and timing in the acoustic recognition system of crickets},
   author={Hennig, R Matthias and Heller, Klaus-Gerhard and Clemens, Jan},
@@ -251,6 +307,13 @@
   year={2009},
 }# Cited
 
+@article{hildebrandt2010neural,
+  title={Neural adaptation in the auditory pathway of crickets and grasshoppers},
+  author={Hildebrandt, Kai Jannis},
+  year={2010},
+  publisher={Humboldt-Universit{\"a}t zu Berlin, Mathematisch-Naturwissenschaftliche Fakult{\"a}t I}
+}
+
 @article{hildebrandt2015neural,
   title={A neural mechanism for time-window separation resolves ambiguity of adaptive coding},
   author={Hildebrandt, K Jannis and Ronacher, Bernhard and Hennig, R Matthias and Benda, Jan},
@@ -396,7 +459,8 @@
   pages={345--373},
   year={1978},
   publisher={Springer}
-}
+}# Cited
+
 @article{miller1977directional,
   title={Directional hearing in the locust Schistocerca gregaria Forsk{\aa}l (Acrididae, Orthophera)},
   author={Miller, Lee A},
@@ -432,6 +496,15 @@
   publisher={University of Michigan Museum of Zoology}
 }# Cited
 
+@article{ozeri2018fast,
+  title={Fast intensity adaptation enhances the encoding of sound in Drosophila.},
+  author={Ozeri-Engelhard, Nofar and Clemens, Jan and Murthy, Mala},
+  journal={Nature Communications},
+  volume={9},
+  number={1},
+  year={2018}
+}# Cited
+
 @article{prinz2002temporal,
   title={Temporal modulation transfer functions in auditory receptor fibres of the locust (Locusta migratoria L.)},
   author={Prinz, P and Ronacher, B},
@@ -462,6 +535,17 @@
   year={1976},
 }# Cited
 
+@article{romer1976informationsverarbeitung,
+  title={Die Informationsverarbeitung tympanaler Rezeptorelemente von Locusta migratoria (acrididae, orthoptera)},
+  author={R{\"o}mer, Heiner},
+  journal={Journal of comparative physiology},
+  volume={109},
+  number={1},
+  pages={101--122},
+  year={1976},
+  publisher={Springer}
+}# Cited
+
 @article{romer1985responses,
   title={Responses to model songs of auditory neurons in the thoracic ganglia and brain of the locust},
   author={R{\"o}mer, Heiner and Seikowski, Ulrich},
@@ -580,7 +664,7 @@
   pages={309--318},
   year={2012},
   publisher={Springer}
-}
+}# Cited
 
 @article{stumpner1994song,
   title={{Song production and song recognition in a group of sibling grasshopper species (Chorthippus dorsatus, Ch. dichrous and Ch. loratus: Orthoptera, Acrididae)}},