--- imach/src/README.txt	2018/04/21 21:10:20	1.7
+++ imach/src/README.txt	2019/05/21 15:55:06	1.8
@@ -7,23 +7,26 @@ introduction of varying covariates).
 
 Interpolated Marlov Chain (IMaCh program)
 
-This program will be licensed under the GNU GNU GENERAL PUBLIC LICENSE.
+This program is licensed under the GNU GNU GENERAL PUBLIC LICENSE.
 
-The program estimates Health Expectancies from Cross-longitudinal
-studies.
-The main publication is Lievre, A. Brouard. N, Heathcote
-Ch. Estimating Health Expectancies from Cross-longitudinal surveys,
-Mathematical Population Studies, 10(1), 2003, pp. 1-52.
+The program estimates Life Expectancies from Cross-longitudinal
+studies as well as age-specific forward and backward prevalences in each state.
+The main publications are:
+(1) Lièvre, A. Brouard. N, Heathcote Ch. Estimating Health
+Expectancies from Cross-longitudinal surveys, Mathematical Population Studies, 10(1), 2003, pp. 1-52.
+(2) Nicolas Brouard, 2019, "Theory and applications of backward probabilities and prevalences in cross-longitudinal surveys". In: Arni S. R. Srinivasa Rao (Ed.) and C.R. Rao (Ed.), Handbook of Statistics.
+Integrated population biology and modeling, Part B, Elsevier, p. 435-486.
+http://hdl.handle.net/20.500.12204/AWltfxMuXMQCvuZmm9UI
 
-To be brief, for each people interviewed we need the age and health
-status at each interview. Also the month and year of death should be
+To be brief, for each people interviewed we need the age and 
+state at each interview. Also the month and year of death should be
 known as for birth.  We model the probability to be observed in any
 state at any age via a parametric model and estimate the parameters
 and their confidence interval by maximum likelihood. Many tables and
 graphs are output in HTML. Graphs are built using gnuplot.
 
-First versions appeared around year 2000. Currently (September 2015)
-version 0.98q5 can run on any Unix, including OS/X and on Windows 10
+First versions appeared around year 2000. Currently (May 2019)
+version 0.99r19 can run on any Unix, including OS/X and on Windows 10
 (64bit) as well as Windows XP (32bit).
 
 Binaries are usually provided for OS/X (DMG for 64bit), Linux (rpm)
@@ -33,7 +36,7 @@ and Windows installer (32 and 64bit).
 STRUCTURE of the binary
 
 IMaCh is a command line program (no time for a GUI) which means that
-it can be run on a shell by $ imach foo.imach where foo.imach is your
+it can be run on a shell by "$ imach foo.imach" where foo.imach is your
 'parameter' file which is a simple text file with a few lines that
 your must edit in order to describe your data as well as your model
 line. In this parameter file you give the name and path of your data