C%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
C
C      >>>>>>>>>>>>>>>>>>>   LICENCE   <<<<<<<<<<<<<<<<<<
C
C      Copyright[c] 2016-2017, S. H. Zhang and R. F. Zhang           
C                                                                    
C      AELAS - an efficient open source command-line program for     
C              Automatic ELAStic constants derivations via           
C              high-throughput first-principles computations.        
C              It is designed by Dr. S. H. Zhang and Prof.           
C              R. F. Zhang at Beihang University.
C                                                                    
C      This program is free software: you can redistribute it        
C      and/or modify it under the terms of the BSD 3-Clause     
C      License as published by the Free Software Foundation,         
C      either version 3 of the License, or (at your option)          
C      any later version.                                            
C                                                                    
C      >>>>>>>>>>>>>>>>>>>   HISTORY   <<<<<<<<<<<<<<<<<<
C
C       1.0.0
C
C       (2017.3.12):
C
C	Four filters to avoid the unstable distortion
C	The standardized unit cell (IEEE-format)
C	
C	>>> For 3D materials
C	
C	The elastic constants of any crystal system
C	The Polycrystalline Young's, shear and bulk moduli and Poisson's ratio
C	The Pugh ratio (G/B)
C	The Cauchy pressure (Pc=C12-C44)
C	The elastic stability condition
C
C	>>> For 2D materials
C	
C	The elastic constants of any crystal system
C	In-plane Young (Ex and Ey) and shear (Gxy) moduli
C	In-plane Poisson's ratios (Muxy and Muyx)
C
C		
C	>>> Further development
C	
C	Elastic constants under high temperature
C	
C	Stress-strain approach
C	Volume reservation elastic constant
C
C	Higher order elastic constants
C
C	Transform elastic tensors
C	Anisotropic elastic properties
C	
C	More reliable polynomial fit
C	More available computer packages exciting VASP, QE, WIEN2K...
C		
C	
C      >>>>>>>>>>>>>>>>>>>   INSTALL   <<<<<<<<<<<<<<<<<<
C
C	! "cmake" is needed before installing AELAS, and more information 
C	    is in https://cmake.org/
C	
C	! Compiling using cmake
C	! after expanding source code, 
C	  and go into the source code directory:
C	
C	  % tar zxvf AELAS-x.x.x.tar.gz
C	  % cd AELAS-x.x.x
C
C	! The current directory is PROJECT_SOURCE_DIR.
C
C	  % cd spglib-x.x.x
C	  % mkdir _build; cd _build
C	  % cmake ..
C	  % make
C	  % make install
C
C	! The libraries are installed at PROJECT_SOURCE_DIR
C  	  /spglib-1.9.9/lib and the header file is installed
C	  at PROJECT_SOURCE_DIR/spglib-1.9.9/include.
C	
C	  % cd ../../src
C	  % make -f makefile
C
C	
C%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%	
