diff --git a/src/credentials.ts b/src/credentials.ts
index 7cff012..bf661ec 100644
--- a/src/credentials.ts
+++ b/src/credentials.ts
@@ -20,6 +20,8 @@ namespace credentials {
     /**
      * LegalEntityCredentialData
      *
+     * {@link https://raw.githubusercontent.com/WebOfTrust/vLEI/dev/schema/acdc/legal-entity-vLEI-credential.json}
+     * 
      * @property {d string} digest of {@link LegalEntityCredentialData} block
      * @property {i AID} AID of credential issuee
      * @property {dt string} Date-time stamp
@@ -68,6 +70,8 @@ namespace credentials {
     /**
      * EngagementContextRoleCredentialData
      *
+     * {@link https://raw.githubusercontent.com/WebOfTrust/vLEI/dev/schema/acdc/legal-entity-engagement-context-role-vLEI-credential.json}
+     * 
      * @property {d string} QVI Issuee AID
      * @property {u string} Issuance date time
      * @property {i AID} Person Issuee AID
@@ -135,6 +139,7 @@ namespace credentials {
     /**
      * EngagementContextRoleAuthorizationCredentialData
      *
+     * {@link https://raw.githubusercontent.com/WebOfTrust/vLEI/dev/schema/acdc/ecr-authorization-vlei-credential.json}
      *
      * @property {d string} SAID of EngagementContextRoleAuthorizationCredentialData
      * @property {i string} QVI Issuee AID
@@ -203,6 +208,8 @@ namespace credentials {
     /**
      * OfficialOrganizationalRoleCredentialData
      *
+     * {@link https://raw.githubusercontent.com/WebOfTrust/vLEI/dev/schema/acdc/legal-entity-official-organizational-role-vLEI-credential.json}
+     * 
      * @property {d string} QVI Issuee AID
      * @property {u string} Issuance date time
      * @property {i AID} Person Issuee AID
@@ -270,6 +277,8 @@ namespace credentials {
     /**
      * OfficialOrganizationalRoleAuthorizationCredentialData
      *
+     * {@link https://raw.githubusercontent.com/WebOfTrust/vLEI/dev/schema/acdc/oor-authorization-vlei-credential.json}
+     * 
      * @property {d string} SAID of EngagementContextRoleAuthorizationCredentialData
      * @property {i string} QVI Issuee AID
      * @property {dt string} Issuance date time
diff --git a/src/le.ts b/src/le.ts
index 66c9308..250f5bc 100644
--- a/src/le.ts
+++ b/src/le.ts
@@ -36,13 +36,13 @@ export class LE {
      * @param {AID} issuee AID of QVI
      * @param {credentials.EngagementContextRoleAuthorizationCredentialData} data
      * @param {edges.EngagementContextRoleAuthorizationEdge} edge}
-     * @returns
+     * @returns {Promise<any>} A promise to the long-running operation
      */
     public async createECRAuthCredential(
         issuee: AID,
         data: credentials.EngagementContextRoleAuthorizationCredentialData,
         edge: edges.EngagementContextRoleAuthorizationEdge
-    ) {
+    ): Promise<any> {
         return await this.client
             .credentials()
             .issue(
@@ -63,13 +63,13 @@ export class LE {
      * @param {AID} issuee AID of QVI
      * @param {credentials.OfficialOrganizationalRoleAuthorizationCredentialData} data
      * @param {edges.OfficialOrganizationalRoleAuthorizationCredentialEdge} edge}
-     * @returns
+     * @returns {Promise<any>} A promise to the long-running operation
      */
     public async createOORAuthCredential(
         issuee: AID,
         data: credentials.OfficialOrganizationalRoleAuthorizationCredentialData,
         edge: edges.OfficialOrganizationalRoleAuthorizationEdge
-    ) {
+    ): Promise<any> {
         return await this.client
             .credentials()
             .issue(
diff --git a/src/qvi.ts b/src/qvi.ts
index 23a8844..78130c1 100644
--- a/src/qvi.ts
+++ b/src/qvi.ts
@@ -38,13 +38,13 @@ export class QVI {
      * @param {AID} issuee
      * @param {credentials.LegalEntityCredentialData} data
      * @param {edges.LegalEntityCredentialEdge} edge
-     * @returns
+     * @returns {Promise<any>} A promise to the long-running operation
      */
     public async createLegalEntityCredential(
         issuee: AID,
         data: credentials.LegalEntityCredentialData,
         edge: edges.LegalEntityCredentialEdge
-    ) {
+    ): Promise<any> {
         return await this.client
             .credentials()
             .issue(
@@ -63,15 +63,15 @@ export class QVI {
      * Create Engagement Context Role Credential
      *
      * @param {AID} issuee
-     * @param {ECRvLEICredentialData} data
-     * @param {ECRAuthEdge} edge
-     * @returns
+     * @param {credentials.EngagementContextRoleCredentialData} data
+     * @param {edges.EngagementContextRoleCredentialEdge} edge
+     * @returns {Promise<any>} A promise to the long-running operation
      */
     public async createEngagementContextRoleCredential(
         issuee: AID,
         data: credentials.EngagementContextRoleCredentialData,
         edge: edges.EngagementContextRoleCredentialEdge
-    ) {
+    ): Promise<any> {
         return await this.client
             .credentials()
             .issue(
@@ -90,15 +90,15 @@ export class QVI {
      * Create Official Organizational Role Credential
      *
      * @param {AID} issuee
-     * @param {OORvLEICredentialData} data
-     * @param {OORAuthvLEICredentialData} edge
-     * @returns
+     * @param {credentials.OfficialOrganizationalRoleCredentialData} data
+     * @param {edges.OfficialOrganizationalRoleCredentialEdge} edge
+     * @returns {Promise<any>} A promise to the long-running operation
      */
     public async createOfficialOrganizationRoleCredential(
         issuee: AID,
         data: credentials.OfficialOrganizationalRoleCredentialData,
         edge: edges.OfficialOrganizationalRoleCredentialEdge
-    ) {
+    ): Promise<any> {
         return await this.client
             .credentials()
             .issue(