Plus/minus Heegner points and Iwasawa theory of elliptic curves at supersingular primes

We extend to the supersingular case the Lambda-adic Euler system method (where Lambda is a suitable Iwasawa algebra) for Heegner points on elliptic curves that was originally developed by Bertolini in the ordinary setting. In particular, given an elliptic curve E over Q with supersingular reduction at a prime p >= 5, we prove results on the Lambda-corank of certain plus/minus p-primary Selmer groups a la Kobayashi of E over the anticyclotomic Z(p)-extension of an imaginary quadratic field and on the asymptotic behaviour of p-primary Selmer groups of E when the base field varies over the finite layers of such a Z(p)-extension. These theorems can be alternatively obtained by combining results of Nekovar, Vatsal and Iovita-Pollack, but do not seem to be directly available in the current literature.