diff --git a/rx.js/rx.js.coincidence.d.ts b/rx.js/rx.js.coincidence.d.ts
index 3ec1a3a25..a87c2b4a3 100644
--- a/rx.js/rx.js.coincidence.d.ts
+++ b/rx.js/rx.js.coincidence.d.ts
@@ -3,34 +3,30 @@
 // Type definitions for RxJS-Coincidence package
 // Project: http://rx.codeplex.com/
 // Definitions by: Carl de Billy <http://carl.debilly.net/>
+// Revision by: Igor Oleinikov <https://github.com/Igorbek>
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
-//
-// Dependencies:
-// -> rx.js
-// -> rx.coincidence.js
 
 declare module Rx {
 
 	interface Observable<T> {
-		join<T2, TDuration, T2Duration, TResult>(
-			right: Observable<T2>,
-			leftDurationSelector: (leftItem: T) => Observable<TDuration>,
-			rightDurationSelector: (rightItem: T2) => Observable<T2Duration>,
-			resultSelector: (leftItem: T, rightItem: T2) => TResult): Observable<TResult>;
+		join<TRight, TDurationLeft, TDurationRight, TResult>(
+			right: Observable<TRight>,
+			leftDurationSelector: (leftItem: T) => Observable<TDurationLeft>,
+			rightDurationSelector: (rightItem: TRight) => Observable<TDurationRight>,
+			resultSelector: (leftItem: T, rightItem: TRight) => TResult): Observable<TResult>;
 
-		groupJoin<T2, TDuration, T2Duration, TResult>(
-			right: Observable<T2>,
-			leftDurationSelector: (leftItem: T) => Observable<TDuration>,
-			rightDurationSelector: (rightItem: T2) => Observable<T2Duration>,
-			resultSelector: (leftItem: T, rightItem: Observable<T2>) => TResult): Observable<TResult>;
+		groupJoin<TRight, TDurationLeft, TDurationRight, TResult>(
+			right: Observable<TRight>,
+			leftDurationSelector: (leftItem: T) => Observable<TDurationLeft>,
+			rightDurationSelector: (rightItem: TRight) => Observable<TDurationRight>,
+			resultSelector: (leftItem: T, rightItem: Observable<TRight>) => TResult): Observable<TResult>;
 
+		window<TWindowOpening>(windowOpenings: Observable<TWindowOpening>): Observable<Observable<T>>;
+		window<TWindowClosing>(windowClosingSelector: () => Observable<TWindowClosing>): Observable<Observable<T>>;
+		window<TWindowOpening, TWindowClosing>(windowOpenings: Observable<TWindowOpening>, windowClosingSelector: () => Observable<TWindowClosing>): Observable<Observable<T>>;
 
-		// lack of documentation to complete the followings...
-
-		buffer<TBufferOpening, TBufferClosing>(bufferOpenings: Observable<TBufferOpening>,
-			bufferClosingSelector: (opening: TBufferOpening) => Observable<TBufferClosing>): Observable<T>;
-
-		window<TBufferOpening, TBufferClosing>(bufferOpenings: Observable<TBufferOpening>,
-			bufferClosingSelector: (opening: TBufferOpening) => Observable<TBufferClosing>): Observable<T>;
+		buffer<TBufferOpening>(bufferOpenings: Observable<TBufferOpening>): Observable<T[]>;
+		buffer<TBufferClosing>(bufferClosingSelector: () => Observable<TBufferClosing>): Observable<T[]>;
+		buffer<TBufferOpening, TBufferClosing>(bufferOpenings: Observable<TBufferOpening>, bufferClosingSelector: () => Observable<TBufferClosing>): Observable<T[]>;
 	}
 }