add missing metadata

data/Chong_2011/metadata.yml

@@ -1,23 +1,49 @@
 source:
   primary:
     key: Chong_2011
+    bibtype: Unpublished
+    year: 2011
+    author: Kwek Yan Chong
+    title: 'Unpublished data: Specific leaf area data from various species in Singapore'
+  secondary:
+    key: Lai_2020
     bibtype: Article
-    year: unknown
-    author: unknown
-    title: unknown
-    journal: unknown
-    volume: unknown
-    number: unknown
-    pages: unknown
-    doi: unknown
+    year: '2020'
+    author: Hao Ran Lai and Kwek Yan Chong and Alex Thiam Koon Yee and Hugh Tiang
+      Wah Tan and Michiel Van Breugel
+    journal: Journal of Ecology
+    title: Functional traits that moderate tropical tree recruitment during post-windstorm
+      secondary succession
+    volume: '108'
+    number: '4'
+    pages: 1322–1333
+    doi: 10.1111/1365-2745.13347
+    issn: 1365-2745
+    editor: Cynthia Chang
+  secondary2:
+    key: Yee_2019
+    bibtype: Article
+    year: '2019'
+    author: Alex T. K. Yee and Hao Ran Lai and Kwek Yan Chong and Louise Neo and Choon
+      Yen Koh and Siu Yueh Tan and Wei Wei Seah and Jolyn W. Loh and Reuben C. J.
+      Lim and Michiel Van Breugel and Hugh T. W. Tan
+    journal: Journal of Vegetation Science
+    title: Short-term responses in a secondary tropical forest after a severe windstorm
+      event
+    volume: '30'
+    number: '4'
+    pages: 720–731
+    doi: 10.1111/jvs.12753
+    issn: 1654-1103
+    editor: Alicia Teresa Rosario Acosta
 contributors:
   data_collectors:
-  - last_name: unknown
-    given_name: unknown
-    ORCID: unknown
+  - last_name: Chong
+    given_name: Kwek Yan
+    ORCID: 0000-0003-4754-8957
     affiliation: unknown
   assistants: unknown
-  dataset_curators: unknown
+  dataset_curators: Hao Ran Lai
 dataset:
   data_is_long_format: no
   custom_R_code: .na