diff --git a/PRIVATE b/PRIVATE
index 547bfe56d..7f2ec3cc2 160000
--- a/PRIVATE
+++ b/PRIVATE
@@ -1 +1 @@
-Subproject commit 547bfe56d67cba358a7bb9582f2f7c0e344befd8
+Subproject commit 7f2ec3cc278a8a1662a741e766a6cc029844e258
diff --git a/examples/config/phase/mechanical/elastic/Hooke_IN625.yaml b/examples/config/phase/mechanical/elastic/Hooke_IN625.yaml
index fefd0389b..dd0d0566f 100644
--- a/examples/config/phase/mechanical/elastic/Hooke_IN625.yaml
+++ b/examples/config/phase/mechanical/elastic/Hooke_IN625.yaml
@@ -1,7 +1,7 @@
 type: Hooke
 
 references:
-  - Wang et al.,
+  - Z. Wang et al.,
     Materials Science and Engineering:A 674:406-412, 2016,
     https://doi.org/10.1016/j.msea.2016.08.010,
     fit to Tab. 2 (last 3 rows)
diff --git a/examples/config/phase/mechanical/plastic/phenopowerlaw_AA6022-T4.yaml b/examples/config/phase/mechanical/plastic/phenopowerlaw_AA6022-T4.yaml
new file mode 100644
index 000000000..36e1a1cc8
--- /dev/null
+++ b/examples/config/phase/mechanical/plastic/phenopowerlaw_AA6022-T4.yaml
@@ -0,0 +1,19 @@
+type: phenopowerlaw
+
+references:
+  - T.J. Barrett and M. Knezevic,
+    Computer Methods in Applied Mechanics and Engineering 354:245-270, 2019,
+    https://doi.org/10.1016/j.cma.2019.05.035,
+    fitted to data shown in Fig 1 and Fig. 2a
+
+output: [xi_sl, gamma_sl]
+
+N_sl: [12]
+
+n_sl: 20
+a_sl: 3.7
+h_0_sl-sl: 1.02e+9
+xi_0_sl: [76.e+6]
+xi_inf_sl: [266.e+6]
+h_sl-sl: [1, 1, 5.123, 0.574, 1.123, 1.123, 1]
+dot_gamma_0_sl: 0.001
diff --git a/examples/config/phase/mechanical/plastic/phenopowerlaw_Al.yaml b/examples/config/phase/mechanical/plastic/phenopowerlaw_Al.yaml
index 68c51cdea..76194d700 100644
--- a/examples/config/phase/mechanical/plastic/phenopowerlaw_Al.yaml
+++ b/examples/config/phase/mechanical/plastic/phenopowerlaw_Al.yaml
@@ -4,19 +4,16 @@ references:
   - W.F. Hosford et al.,
     Acta Metallurgica 8(3):187-199, 1960,
     https://doi.org/10.1016/0001-6160(60)90127-9,
-    fitted from Fig. 5
-  - U.F. Kocks,
-    Metallurgical and Materials Transactions B 1:1121–1143, 1970,
-    https://doi.org/10.1007/BF02900224
+    fitted to Fig. 5 ([111] and [001])
 
 output: [xi_sl, gamma_sl]
 
 N_sl: [12]
 
 n_sl: 20
-a_sl: 3.1
-h_0_sl-sl: 1.7e+8
-xi_0_sl: [5.0e+6]
-xi_inf_sl: [37.5e+6]
-h_sl-sl: [1, 1, 1.4, 1.4, 1.4, 1.4, 1.4]
+a_sl: 5.4
+h_0_sl-sl: 281.5e+6
+xi_0_sl: [2.69e+6]
+xi_inf_sl: [67.5e+6]
+h_sl-sl: [1, 1, 5.123, 0.574, 1.123, 1.123, 1]
 dot_gamma_0_sl: 7.5e-5
diff --git a/examples/config/phase/mechanical/plastic/phenopowerlaw_Cu.yaml b/examples/config/phase/mechanical/plastic/phenopowerlaw_Cu.yaml
index 223495d26..08f366b15 100644
--- a/examples/config/phase/mechanical/plastic/phenopowerlaw_Cu.yaml
+++ b/examples/config/phase/mechanical/plastic/phenopowerlaw_Cu.yaml
@@ -1,22 +1,19 @@
 type: phenopowerlaw
 
 references:
-  - T Takeuchi,
+  - T. Takeuchi,
     Transactions of the Japan Institute of Metals 16(10):629-640, 1975,
     https://doi.org/10.2320/matertrans1960.16.629,
-    fitted from Fig. 3b
-  - U.F. Kocks,
-    Metallurgical and Materials Transactions B 1:1121–1143, 1970,
-    https://doi.org/10.1007/BF02900224
+    fitted to Fig. 3b ([111] and [001])
 
 output: [xi_sl, gamma_sl]
 
 N_sl: [12]
 
 n_sl: 20
-a_sl: 1.0
-h_0_sl-sl: 2.4e+8
-xi_0_sl: [1.5e+6]
-xi_inf_sl: [112.5e+6]
-h_sl-sl: [1, 1, 1.4, 1.4, 1.4, 1.4, 1.4]
+a_sl: 0.6
+h_0_sl-sl: 3.5e+8
+xi_0_sl: [1.6e+6]
+xi_inf_sl: [96.4e+6]
+h_sl-sl: [1, 1, 5.123, 0.574, 1.123, 1.123, 1]
 dot_gamma_0_sl: 3.e-3
diff --git a/examples/config/phase/mechanical/plastic/phenopowerlaw_Pt-5%Cu.yaml b/examples/config/phase/mechanical/plastic/phenopowerlaw_Pt-5%Cu.yaml
index 864237825..59b58cdb1 100644
--- a/examples/config/phase/mechanical/plastic/phenopowerlaw_Pt-5%Cu.yaml
+++ b/examples/config/phase/mechanical/plastic/phenopowerlaw_Pt-5%Cu.yaml
@@ -4,17 +4,16 @@ references:
   - K.M. Jackson and C. Lang,
     Platinum Metals Review 50:15-19, 2006,
     https://doi.org/10.1595/147106705X93359,
-    fitted from Fig. 5 (Pt-5% Cu recrystallised)
-  - U.F. Kocks,
-    Metallurgical and Materials Transactions B 1:1121–1143, 1970,
-    https://doi.org/10.1007/BF02900224
+    fitted to Fig. 5 (Pt-5% Cu recrystallised)
+
+output: [xi_sl, gamma_sl]
 
 N_sl: [12]
 
-n_sl: 1.6
-a_sl: 0.8
-h_0_sl-sl: 300.0e+6
-xi_0_sl: [150.0e+6]
-xi_inf_sl: [500.0e+6]
-h_sl-sl: [1, 1, 1.4, 1.4, 1.4, 1.4, 1.4]
-dot_gamma_0_sl: 0.0001
+n_sl: 20
+a_sl: 0.9
+h_0_sl-sl: 781.2e+6
+xi_0_sl: [114.e+6]
+xi_inf_sl: [207.e+6]
+h_sl-sl: [1, 1, 5.123, 0.574, 1.123, 1.123, 1]
+dot_gamma_0_sl: 0.001